EP3210969B1 - Activateur des canaux kcnq2-5 - Google Patents

Activateur des canaux kcnq2-5 Download PDF

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Publication number
EP3210969B1
EP3210969B1 EP15852712.7A EP15852712A EP3210969B1 EP 3210969 B1 EP3210969 B1 EP 3210969B1 EP 15852712 A EP15852712 A EP 15852712A EP 3210969 B1 EP3210969 B1 EP 3210969B1
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EP
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Prior art keywords
methyl
trifluoro
phenyl
group
dichloro
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EP15852712.7A
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German (de)
English (en)
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EP3210969A4 (fr
EP3210969A1 (fr
Inventor
Kentaro YASHIRO
Daisuke Wakamatsu
Tetsuji Saito
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Ono Pharmaceutical Co Ltd
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Ono Pharmaceutical Co Ltd
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    • C07D213/02Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members
    • C07D213/04Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom
    • C07D213/60Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
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    • C07C233/24Carboxylic acid amides having carbon atoms of carboxamide groups bound to hydrogen atoms or to acyclic carbon atoms having the nitrogen atom of at least one of the carboxamide groups bound to a carbon atom of a hydrocarbon radical substituted by singly-bound oxygen atoms with the substituted hydrocarbon radical bound to the nitrogen atom of the carboxamide group by a carbon atom of a six-membered aromatic ring
    • C07C233/26Carboxylic acid amides having carbon atoms of carboxamide groups bound to hydrogen atoms or to acyclic carbon atoms having the nitrogen atom of at least one of the carboxamide groups bound to a carbon atom of a hydrocarbon radical substituted by singly-bound oxygen atoms with the substituted hydrocarbon radical bound to the nitrogen atom of the carboxamide group by a carbon atom of a six-membered aromatic ring having the carbon atom of the carboxamide group bound to an acyclic carbon atom of a saturated carbon skeleton containing rings
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    • A61K31/44Non condensed pyridines; Hydrogenated derivatives thereof
    • A61K31/445Non condensed piperidines, e.g. piperocaine
    • A61K31/4523Non condensed piperidines, e.g. piperocaine containing further heterocyclic ring systems
    • A61K31/4545Non condensed piperidines, e.g. piperocaine containing further heterocyclic ring systems containing a six-membered ring with nitrogen as a ring hetero atom, e.g. pipamperone, anabasine
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    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D333/00Heterocyclic compounds containing five-membered rings having one sulfur atom as the only ring hetero atom
    • C07D333/02Heterocyclic compounds containing five-membered rings having one sulfur atom as the only ring hetero atom not condensed with other rings
    • C07D333/04Heterocyclic compounds containing five-membered rings having one sulfur atom as the only ring hetero atom not condensed with other rings not substituted on the ring sulphur atom
    • C07D333/06Heterocyclic compounds containing five-membered rings having one sulfur atom as the only ring hetero atom not condensed with other rings not substituted on the ring sulphur atom with only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached to the ring carbon atoms
    • C07D333/14Radicals substituted by singly bound hetero atoms other than halogen
    • C07D333/20Radicals substituted by singly bound hetero atoms other than halogen by nitrogen atoms
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    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D333/00Heterocyclic compounds containing five-membered rings having one sulfur atom as the only ring hetero atom
    • C07D333/02Heterocyclic compounds containing five-membered rings having one sulfur atom as the only ring hetero atom not condensed with other rings
    • C07D333/04Heterocyclic compounds containing five-membered rings having one sulfur atom as the only ring hetero atom not condensed with other rings not substituted on the ring sulphur atom
    • C07D333/26Heterocyclic compounds containing five-membered rings having one sulfur atom as the only ring hetero atom not condensed with other rings not substituted on the ring sulphur atom with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
    • C07D333/28Halogen atoms
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    • C07ORGANIC CHEMISTRY
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    • C07D413/00Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and oxygen atoms as the only ring hetero atoms
    • C07D413/02Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and oxygen atoms as the only ring hetero atoms containing two hetero rings
    • C07D413/06Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and oxygen atoms as the only ring hetero atoms containing two hetero rings linked by a carbon chain containing only aliphatic carbon atoms

Definitions

  • the present invention relates to a compound represented by the general formula (I): (wherein all the symbols represent the same meanings as given below), a salt thereof, a solvate thereof, or a cocrystal thereof (hereinafter, also abbreviated as the compound of the present invention).
  • KCNQ channel has five subtypes including KCNQ1, KCNQ2, KCNQ3, KCNQ4, and KCNQ5.
  • KCNQs 2-5 other than KCNQ1 are expressed in the nociceptive sensory system such as spinal dorsal root ganglion and spinal cord.
  • the activation of the KCNQ2-5 channel causes hyperpolarization of the nerve cell in a nociceptive signal pathway.
  • KCNQ2-5 channel activator is useful for treatment for many disorders characterized by neuron excitatory disorders including epilepsy, pain, migraine, and anxiety disorders (see Non-Patent Literature 1). Actually, retigabine as a KCNQ2-5 channel activator has been marketed as an antiepileptic drug.
  • Non-Patent Literatures 2 and 3 it has been also reported that the retigabine is useful for treatment for urinary bladder disorders (for example, overactive urinary bladder) (see Non-Patent Literatures 2 and 3).
  • a muscarinic receptor antagonist having an effect of mainly inhibiting contraction of the urinary bladder has been widely used for treatment for overactive urinary bladder.
  • the muscarinic receptor is present not only in the urinary bladder but also in the salivary gland, the intestinal tract, the ciliary muscle, and the like, and the muscarinic receptor has also a functional role. Therefore, adverse reactions such as dry mouth, constipation, and nephelopsia may occur concurrently.
  • the effect of inhibiting contraction of the urinary bladder by the muscarinic receptor antagonist may cause adverse reactions such as difficulty of urination, increase in the amount of residual urine, and urodialysis. Therefore, sufficient therapeutic effect cannot be necessarily provided.
  • a selective ⁇ 3 adrenergic receptor agonist was put on the market in 2011 in Japan. It is suggested that the selective ⁇ 3 adrenergic receptor agonist enhances the urine collection function by relaxing action of the urinary bladder, while it gives less effect on the urination function.
  • the selective ⁇ 3 adrenergic receptor agonist exhibits the relaxing action of the urinary bladder not by contractile stimulation, it is expected to have an effect in a wide range of patients.
  • increase in use increases a risk of Q-T extension and shows increase in the cardiac rate by the effect of ⁇ cardiac receptor, and which is a restriction factor of the usage.
  • the KCNQ2-5 channel activator is expected as a drug that responds to these unmet medical needs.
  • a KCNQ activator having a monocyclic amide skeleton for example, a compound represented by the general formula (a) is known: (wherein Za is O or S; qa is 0 or 1; R a1 and R a2 are each independently selected from the group consisting of halogen, cyano, amino, C 1-6 -alkyl (alkenyl/alkynyl), and the like; R a3 is selected from the group consisting of C 1-8 -alkyl (alkenyl/alkynyl), C 3-8 -cycloalkyl (cycloalkenyl), C 3-8 -cycloalkyl (cycloalkenyl) -C 1-6 -alkyl (alkenyl/alkynyl), aryl-C 1-6 -alkyl (alkenyl/alkynyl), aryl-C 3-8 -cycloalkyl (cycloalkenyl), and the like; R a4
  • Patent Literature 1 includes neither description nor suggestion of technique of achieving the compound of the present invention from the compound described in the Patent Literature 1.
  • Patent Literature 2 describes the following compound: (N-ethyl-N'-[2-bromo-4-(hexafluoro-2-hydroxy-2-propyl)phenyl]urea).
  • Patent Literature 2 relates to a compound having a hyopotensive activity, and includes neither description nor suggestion of the KCNQ activity.
  • An object of the present invention is to provide a compound having a strong opening action with respect to KCNQ2-5 channels.
  • the inventors of the present invention have keenly studied, and as a result, found that the compound of the present invention has a strong opening action with respect to the KCNQ2-5 channels. Furthermore, the present inventors have found that the compound of the present invention is excellent in solubility, stability and/or safety. Thus, the present inventors have completed the present invention.
  • the present invention relates to
  • the compound of the present invention is useful as preventive and/or therapeutic agent for KCNQ2-5 channel-related diseases.
  • the C1-4 alkyl group means a straight or a branched C1-4 alkyl group.
  • Examples of the C1-4 alkyl group include methyl, ethyl, propyl, isopropyl, butyl, sec-butyl, and tert-butyl.
  • the C2-4 alkyl group means a straight or a branched C2-4 alkyl group.
  • Examples of the C2-4 alkyl group include ethyl, propyl, isopropyl, butyl, sec-butyl, and tert-butyl.
  • the C1-6 alkyl group means a straight or a branched C1-6 alkyl group.
  • the C1-6 alkyl group include methyl, ethyl, propyl, isopropyl, butyl, sec-butyl, tert-butyl, pentyl, isopentyl, tert-pentyl, neopentyl, hexyl, isohexyl, 3-methyl pentyl, and the like.
  • the C2-5 acyl group means a straight or a branched C2-5 acyl group.
  • Examples of the C2-5 acyl group include acetyl, propionyl, butanoyl, pentanoyl, and the like.
  • the C2-6 alkenyl group means a straight or a branched C2-6 alkenyl group having at least one carbon-carbon double bond.
  • Examples of the C2-6 alkenyl group include ethenyl, 1-propene-1-yl, 1-propene-2-yl, 2-propene-1-yl, 1-butene-1-yl, 1-butene-2-yl, 3-butene-1-yl, 3-butene-2-yl, 2-butene-1-yl, 2-butene-2-yl, 2-methyl-1-propene-1-yl, 2-methyl-2-propene-1-yl, 1,3-butadiene-1-yl, 1,3-butadiene -2-yl, and the like.
  • the C2-6 alkynyl group means a straight or a branched C2-6 alkynyl group having at least one carbon-carbon triple bond.
  • Examples of the C2-6 alkynyl group include ethynyl, 1-propyne-1-yl, 2-propyne-1-yl, 1-butyne-1-yl, 3-butyne-1-yl, 3-butyne-2-yl, 2-butyne-1-yl, and the like.
  • the C1-4 alkylene group means a straight or a branched C1-4 alkylene group.
  • Examples of the C1-4 alkylene group include methylene, ethylene, methyl methylene, ethyl methylene, propylene, butylene, isopropylene, isobutylene, sec-butylene, tert-butylene, and the like.
  • the C2-4 alkenylene group means a straight or a branched C2-4 alkenylene group.
  • Examples of the C2-4 alkenylene group include ethenylene, 1-propenylene, 2-propenylene, 1-butenylene, 2-butenylene, 3-butenylene, and the like.
  • the C2-4 alkynylene group means a straight or a branched C2-4 alkynylene group.
  • Examples of the C2-4 alkynylene group include ethynylene, 1-propynylene, 2-propynylene, 1-buthynylene, 2-buthynylene, 3-buthynylene, and the like.
  • the C1-4 alkoxy group means a straight or a branched C1-4 alkoxy group.
  • Examples of the C1-4 alkoxy group include methoxy, ethoxy, propoxy, isopropoxy, butoxy, isobutyloxy, tert-butoxy, and the like.
  • C1-6 alkoxy group means a straight or a branched C1-6 alkoxy group.
  • Examples of the C1-6 alkoxy group include methoxy, ethoxy, propoxy, isopropoxy, butoxy, isobutyloxy, tert-butoxy, pentyloxy, isopentyloxy, tert-pentyloxy, neopentyloxy, hexyloxy, and the like.
  • halogen means fluorine, chlorine, bromine, iodine, and the like.
  • the C3-8 cycloalkane is a C3-8 saturated hydrocarbon ring, and may include a spiro bond or cross-linking.
  • Examples of the C3-8 cycloalkane include cyclopropane, cyclobutane, cyclopentane, cyclohexane, bicyclo[2.2.1]heptane, bicyclo[3.1.1]heptane, bicyclo[2.2.2]octane, cycloheptane, cyclooctane, perhydropentalene, cubane, and the like.
  • C3-8 monocyclic cycloalkane examples include cyclopropane, cyclobutane, cyclopentane, cyclohexane, cycloheptane, and cyclooctane.
  • C3-6 monocyclic cycloalkane examples include cyclopropane, cyclobutane, cyclopentane, and cyclohexane.
  • the 3- to 8-membered heterocycloalkane is a 3- to 8-membered saturated heterocycle including one to three heteroatoms selected from an oxygen atom, a nitrogen atom and a sulfur atom, and may include a spiro bond or cross-linking.
  • 3- to 8-membered heterocycloalkane include aziridine, oxirane, thiirane, azetidine, oxetane, thietane, pyrrolidine, tetrahydrofuran, tetrahydrothiophene, piperidine, tetrahydropyran, tetrahydrothiopyran, azabicyclo[2.2.1]heptane, oxabicyclo[2.2.1]heptane, azabicyclo[3.1.1]heptane, azabicyclo[2.2.2]octane, perhydroazepine, perhydrooxepin, perhydrothiepin, azabicyclo[3.2.1]octane, oxabicyclo[3.2.1]octane, imidazolidine, pyrazolidine, tetrahydro-oxazole (oxazolidine), tetrahydroisoxazo
  • 3- to 7-membered monocyclic heterocycloalkane including one oxygen atom as the heteroatom include oxirane, oxetane, tetrahydrofuran, tetrahydropyran, perhydrooxepin, and the like.
  • 3- to 7-membered monocyclic heterocycloalkane including one oxygen atom or nitrogen atom as the heteroatom include aziridine, oxirane, azetidine, oxetane, pyrrolidine, tetrahydrofuran, piperidine, tetrahydropyran, perhydroazepine, perhydrooxepin, and the like.
  • 3- to 7-membered monocyclic heterocycloalkane including one nitrogen atom as the heteroatom include aziridine, azetidine, pyrrolidine, piperidine, perhydroazepine, and the like.
  • C3-12 monocyclic or bicyclic unsaturated carbocyclic ring, or which may be partially saturated include cyclopropene, cyclobutene, cyclopentene, cyclopentadiene, cyclohexene, cyclohexadiene, benzene, cycloheptene, cycloheptadiene, cyclooctene, cyclooctadiene, pentalene, indene, indan, dihydronaphthalene, tetrahydronaphthalene, azulene, naphthalene, heptalene, and the like.
  • C5-12 monocyclic or bicyclic unsaturated carbocyclic ring or which may be partially saturated include cyclopentene, cyclopentadiene, cyclohexene, cyclohexadiene, benzene, cycloheptene, cycloheptadiene, cyclooctene, cyclooctadiene, pentalene, indene, indan, dihydronaphthalene, tetrahydronaphthalene, azulene, naphthalene, heptalene, and the like.
  • C3-7 monocyclic unsaturated carbocyclic ring or which may be partially saturated include cyclopropene, cyclobutene, cyclopentene, cyclopentadiene, cyclohexene, cyclohexadiene, benzene, cycloheptene, cycloheptadiene, and the like.
  • C5-7 monocyclic unsaturated carbocyclic ring or which may be partially saturated include cyclopentene, cyclopentadiene, cyclohexene, cyclohexadiene, benzene, cycloheptene, cycloheptadiene, and the like.
  • C5-6 monocyclic unsaturated carbocyclic ring or which may be partially saturated include cyclopentene, cyclopentadiene, cyclohexene, cyclohexadiene, benzene, and the like.
  • C8-10 bicyclic unsaturated carbocyclic ring or which may be partially saturated include pentalene, indene, indan, dihydronaphthalene, tetrahydronaphthalene, azulene, naphthalene, and the like.
  • specific examples of the "3- to 12-membered monocyclic or bicyclic unsaturated heterocycle including one to four heteroatoms selected from an oxygen atom, a nitrogen atom, and a sulfur atom, or which may be partially saturated” include azirine, oxirene, thiirene, azete, pyrroline, imidazoline, triazoline, tetrazoline, pyrazoline, dihydrofuran, dihydrothiophene, dihydrooxazole, dihydroisoxazole, dihydrothiazole, dihydroisothiazole, dihydrofurazan, dihydrooxadiazole, dihydrothiadiazole, pyrrole, imidazole, triazol, tetrazole, pyrazole, furan, thiophene, oxazole, isoxazole, thiazole, isothiazole, furazan, oxadiazole, thiadiazole,
  • specific examples of the "5- to 12-membered monocyclic or bicyclic unsaturated heterocycle including one to four heteroatoms selected from an oxygen atom, a nitrogen atom and a sulfur atom, or which may be partially saturated” include pyrroline, imidazoline, triazoline, tetrazoline, pyrazoline, dihydrofuran, dihydrothiophene, dihydrooxazole, dihydroisoxazole, dihydrothiazole, dihydroisothiazole, dihydrofurazan, dihydrooxadiazole, dihydrothiadiazole, pyrrole, imidazole, triazol, tetrazole, pyrazole, furan, thiophene, oxazole, isoxazole, thiazole, isothiazole, furazan, oxadiazole, thiadiazole, pyran, thiopyran, oxazine, oxadia
  • specific examples of the "3- to 7-membered monocyclic unsaturated heterocycle including one to three heteroatoms selected from an oxygen atom, a nitrogen atom, and a sulfur atom, or which may be partially saturated” include azirine, oxirene, thiirene, azete, pyrroline, dihydrofuran, dihydrothiophene, pyrrole, furan, thiophene, pyran, thiopyran, dihydropyridine, tetrahydropyridine, dihydropyran, dihydrothiopyran, pyridine, azepine, oxepin, thiepin, dihydroazepine, tetrahydroazepine, dihydrooxepin, tetrahydrooxepin, dihydrothiepin, tetrahydrothiepin, imidazoline, pyrazoline, dihydrooxazole, dihydroisoxazole
  • specific examples of the "5- to 7-membered monocyclic unsaturated heterocycle including one to three heteroatoms selected from an oxygen atom, a nitrogen atom and a sulfur atom, or which may be partially saturated” include pyrroline, dihydrofuran, dihydrothiophene, pyrrole, furan, thiophene, pyran, thiopyran, dihydropyridine, tetrahydropyridine, dihydropyran, dihydrothiopyran, pyridine, azepine, oxepin, thiepin, dihydroazepine, tetrahydroazepine, dihydrooxepin, tetrahydrooxepin, dihydrothiepin, tetrahydrothiepin, imidazoline, pyrazoline, dihydrooxazole, dihydroisoxazole, dihydrothiazole, dihydroisothiazole, imidazole
  • specific examples of the "5- to 6-membered monocyclic unsaturated heterocycle including one to three heteroatoms selected from an oxygen atom, a nitrogen atom and a sulfur atom, or which may be partially saturated” include pyrroline, dihydrofuran, dihydrothiophene, imidazoline, pyrazoline, dihydrooxazole, dihydroisoxazole, dihydrothiazole, dihydroisothiazole, triazoline, dihydrofurazan, dihydrooxadiazole, dihydrothiadiazole, pyran, thiopyran, dihydropyridine, tetrahydropyridine, dihydropyran, dihydrothiopyran, oxazine, thiazine, dihydropyrazine, tetrahydropyrazine, dihydropyrimidine, tetrahydropyrimidine, dihydropyridazine, tetrahydropyrid
  • specific examples of the "5- to 6-membered unsaturated heterocycle including one to three heteroatoms selected from an oxygen atom, a nitrogen atom and a sulfur atom” include pyrrole, furan, thiophene, imidazole, pyrazole, oxazole, isoxazole, thiazole, isothiazole, triazol, furazan, oxadiazole, thiadiazole, pyridine, pyrazine, pyrimidine, pyridazine, and the like.
  • specific examples of the "5- to 6-membered monocyclic unsaturated nitrogen-containing heterocycle including one to three heteroatoms selected from an oxygen atom, a nitrogen atom, and a sulfur atom, wherein the said 5- to 6-membered monocyclic unsaturated nitrogen-containing heterocycle contains at least one nitrogen atom” include pyrrole, oxazole, isoxazole, thiazole, isothiazole, pyridine, imidazole, pyrazole, furazan, oxadiazole, thiadiazole, pyrazine, pyrimidine, pyridazine, triazol, and the like.
  • specific examples of the "9- to 10-membered bicyclic unsaturated heterocycle including one to four heteroatoms selected from an oxygen atom, a nitrogen atom, and a sulfur atom, or which may be partially saturated” include indolizine, indoline, isoindoline, dihydrobenzofuran, dihydroisobenzofuran, dihydrobenzothiophene, dihydroisobenzothiophene, dihydroindazole, dihydrobenzoxazole, dihydrobenzothiazole, dihydrobenzimidazole, dioxaindan, benzodithiolane, quinolizine, chromene, dihydroquinoline, tetrahydroquinoline, dihydroisoquinoline, tetrahydroisoquinoline, chroman, dithianaphthalene, dihydrophthalazine, tetrahydrophthalazine, dihydronaphthyridine, te
  • "9- to 10-membered bicyclic unsaturated heterocycle including one to three heteroatoms selected from an oxygen atom, a nitrogen atom, and a sulfur atom, in which 5- or 6-membered heterocycle is condensed to benzene, or which may be partially saturated” include indole, isoindole, benzofuran, isobenzofuran, benzothiophene, isobenzothiophene, quinoline, isoquinoline, indazole, benzoxazole, benzothiazole, benzimidazole, phthalazine, quinoxaline, quinazoline, cinnoline, benzofurazan, benzothiadiazole, benzotriazol, indoline, isoindoline, dihydrobenzofuran, dihydroisobenzofuran, dihydrobenzothiophene, dihydroisobenzothiophene, chromene, dihydroquinoline, t
  • the number of substituents is not specified, the number of substituents, if present, is intended to be one or more.
  • each substituent is independently defined for each occurrence in the definition in the general formula.
  • substituents may be the same as or different from each other.
  • the KCNQ2-5 channels mean a KCNQ channel in which four of each of the subtypes KCNQ2 to KCNQ5 are gathered to form a homotetramer or a heterotetramer.
  • examples thereof include homotetramers such as KCNQ2, KCNQ3, KCNQ4, and KCNQ5 channel, or heterotetramers such as KCNQ2/3, KCNQ3/4, KCNQ3/5 channel, and the like.
  • Preferable examples include KCNQ2/3, KCNQ4 and/or KCNQ5 channel.
  • the KCNQ2-5 channel activator refers to a compound having an opening action with respect to the KCNQ2-5 channels (preferably, KCNQ2/3, KCNQ4 and/or KCNQ5 channel).
  • a KCNQ channel activation action has the same meaning as that of a KCNQ channel opening action.
  • X 1 is preferably C-R 6 .
  • X 2 is preferably C-R 7 .
  • R 11 is preferably OR 1 . Furthermore, OH and NH 2 are also preferable.
  • Y is preferably -NH- or a bond, and more preferably -NH-.
  • R 1 is preferably a hydrogen atom or a methyl group, and more preferably a hydrogen atom.
  • R 2 is preferably a hydrogen atom or a C1-2 alkyl group which may be substituted with halogen, more preferably a hydrogen atom or a methyl group which may be substituted with halogen, and further more preferably a methyl group or a trifluoromethyl group.
  • R 3 is preferably a hydrogen atom or a C1-2 alkyl group which may be substituted with halogen, more preferably a hydrogen atom or a methyl group which may be substituted with halogen, and further more preferably a hydrogen atom, a methyl group or a trifluoromethyl group.
  • the combination of R 2 and R 3 is preferably a combination in which at least one of R 2 and R 3 is a methyl group which may be substituted with halogen, and the other is a hydrogen atom or a methyl group which may be substituted with halogen, and more preferably a combination in which at least one of R 2 and R 3 is a trifluoromethyl group, and the other is a hydrogen atom or a methyl group.
  • R 4 is preferably a hydrogen atom, a halogen, a C1-4 alkyl group or a C1-4 alkoxy group, more preferably a hydrogen atom, halogen, or a C1-4 alkyl group, further preferably halogen or a methyl group, and particularly preferably halogen.
  • R 5 is preferably a hydrogen atom, a halogen, a C1-4 alkyl group or a C1-4 alkoxy group, more preferably a hydrogen atom, halogen, or a C1-4 alkyl group, further preferably halogen or a methyl group, and particularly preferably halogen.
  • R 6 is preferably a hydrogen atom or a halogen, and further preferably a hydrogen atom.
  • R 7 is preferably a hydrogen atom or a halogen, and further preferably a hydrogen atom.
  • R 6 and R 7 are a hydrogen atom, and more preferable that both of R 6 and R 7 are a hydrogen atom.
  • R 8 is preferably a hydrogen atom or a methyl group, and more preferably a hydrogen atom.
  • R 9 is preferably (1) a ring A, (2) a C2-4 alkyl group which may be substituted with halogen or a hydroxy group, (3) -ring B-ring C, (4) -ring B-methylene-ring C, or (5) -ring B-O-ring C.
  • the rings each independently may be substituted with one to five R 10 .
  • R 9 is more preferably a ring A substituted with one to five R 10 ; further preferably a 5- to 6-membered monocyclic unsaturated heterocycle including one to three heteroatoms selected from an oxygen atom, a nitrogen atom, and a sulfur atom, which may be substituted with one to three substituents (preferably one substituent) each selected from the group consisting of (1) halogen, (2) a C1-4 alkyl group which may be substituted with halogen, and (3) a C1-4 alkoxy group which may be substituted with halogen (preferably selected from the group consisting of halogen and a C1-4 alkyl group which may be substituted with halogen); and particularly preferably a 5- to 6-membered monocyclic unsaturated nitrogen-containing heterocycle including one to three heteroatoms selected from an oxygen atom, a nitrogen atom, and a sulfur atom, wherein the said 5- to 6-membered monocyclic unsaturated nitrogen-containing heterocycle contains at least one nitrogen atom, which is substituted with a single
  • the ring A is preferably (1) C3-8 monocyclic cycloalkane, (2) 3- to 7-membered monocyclic heterocycloalkane including one oxygen atom as a heteroatom, (3) a C5-7 monocyclic unsaturated carbocyclic ring, or which may be partially saturated, (4) a C8-10 bicyclic unsaturated carbocyclic ring, or which may be partially saturated, (5) a 5- to 7-membered monocyclic unsaturated heterocycle including one to three heteroatoms selected from an oxygen atom, a nitrogen atom, and a sulfur atom, or which may be partially saturated, (6) a 9- to 10-membered bicyclic unsaturated heterocycle including one to four heteroatoms selected from an oxygen atom, a nitrogen atom, and a sulfur atom, or which may be partially saturated (herein, the rings each independently may be substituted with one to five R 10 ); more preferably (1) a C3-6 monocyclic cycloalkane, (2) a 5- to 6-
  • the ring B is preferably (1) C3-8 monocyclic cycloalkane, (2) 3- to 7-membered monocyclic heterocycloalkane including one oxygen atom as a heteroatom, (3) a C5-7 monocyclic unsaturated carbocyclic ring, or which may be partially saturated, or (4) 5- to 7-membered monocyclic unsaturated heterocycle including one to three heteroatoms selected from an oxygen atom, a nitrogen atom and a sulfur atom, or which may be partially saturated (herein the rings each independently may be substituted with one to five R 10 ); more preferably 5- to 6-membered monocyclic unsaturated heterocycle including one to three heteroatoms selected from an oxygen atom, a nitrogen atom, and a sulfur atom, which may be substituted with one to three substituents (preferably one substituent) selected from the group consisting of (1) halogen, (2) a C1-4 alkyl group which may be substituted with halogen, (3) a C1-4 alkoxy group which may be substituted
  • the ring C is preferably (1) C3-8 monocyclic cycloalkane, (2) 3- to 7-membered monocyclic heterocycloalkane including one oxygen atom or a nitrogen atom as a heteroatom, (3) a C5-7 monocyclic unsaturated carbocyclic ring, or which may be partially saturated, or (4) 5- to 7-membered monocyclic unsaturated heterocycle including one to three heteroatoms selected from an oxygen atom, a nitrogen atom and a sulfur atom, or which may be partially saturated (herein the rings each independently may be substituted with one to five R 10 ); more preferably (1) C3-8 monocyclic cycloalkane, (2) 3- to 7-membered monocyclic heterocycloalkane including one nitrogen atom as heteroatom, or (3) a C5-7 monocyclic unsaturated carbocyclic ring or which may be partially saturated (herein, the rings each independently may be substituted with one to five R 10 ); further preferably C3-8 monocyclic cycloalkan
  • R 10 is preferably (1) halogen, (2) a hydroxy group, (3) a cyano group, (4) a C1-4 alkyl group which may be substituted with halogen or a hydroxy group, or (5) a C1-4 alkoxy group which may be substituted with halogen or a hydroxy group; more preferably (1) halogen, (2) a C1-4 alkyl group which may be substituted with halogen, or (3) a C1-4 alkoxy group which may be substituted with halogen; further preferably (1) halogen or (2) a C1-4 alkyl group which may be substituted with halogen; and particularly preferably halogen or a trifluoromethyl group.
  • a compound of the general formula (I) including the aforementioned preferable combination is preferable.
  • a preferable compound includes a compound represented by the general formula (I-1): (wherein the symbols represent the same meanings as defined above), a salt thereof, a solvate thereof, or a cocrystal thereof.
  • a preferable compound includes a compound represented by the general formula (II): (wherein the symbols represent the same meanings as defined above), a salt thereof, a solvate thereof, or a cocrystal thereof.
  • a preferable compound includes a compound represented by the general formula (III): (wherein the symbols represent the same meanings as defined above), a salt thereof, a solvate thereof, or a cocrystal thereof.
  • the compounds of the general formula (I-1), (II) or (III) including the combinations of the above-listed preferable groups are preferable.
  • a more preferable compound includes a compound represented by the general formula (II-1): (wherein R 6 is a hydrogen atom or halogen, and the other symbols represent the same meanings as defined above), a salt thereof, a solvate thereof, or a cocrystal thereof.
  • a more preferable compound includes a compound represented by the general formula (11-2): (wherein R 6 is a hydrogen atom or halogen, and the other symbols represent the same meanings as defined above), a salt thereof, a solvate thereof, or a cocrystal thereof.
  • the compounds of the general formula (II-1) or (II-2) including the combinations of the above-listed preferable groups are preferable.
  • a further preferable compound includes a compound represented by the general formula (II-1-1): (wherein R 4 and R 5 are each independently (1) a hydrogen atom, (2) halogen, (3) a C1-4 alkyl group, or (4) a C1-4 alkoxy group (preferably, R 4 and R 5 are each independently a hydrogen atom, halogen or a C1-4 alkyl group), wherein both R 4 and R 5 are not simultaneously a hydrogen atom; R 6 is a hydrogen atom or halogen; R 8 is (1) a hydrogen atom or (2) a C1-4 alkyl group which may be substituted with halogen or a hydroxy group (preferably, a hydrogen atom or a methyl group); R 9 is preferably (1) a ring A, (2) a C2-4 alkyl group which may be substituted with halogen or a hydroxy group, (3) -ring B-ring C, (4) -ring B-methylene-ring C, or (5) -ring B-O-ring C (R 9 is
  • a further preferable compound includes a compound represented by the general formula (II-2-1): (wherein R 4 and R 5 are each independently (1) a hydrogen atom, (2) halogen, (3) a C1-4 alkyl group, or (4) a C1-4 alkoxy group (preferably, R 4 and R 5 are each independently a hydrogen atom, halogen or a C1-4 alkyl group), wherein both R 4 and R 5 are not simultaneously a hydrogen atom; R 6 is a hydrogen atom or halogen; R 8 is (1) a hydrogen atom or (2) a C1-4 alkyl group which may be substituted with halogen or a hydroxy group (preferably, a hydrogen atom or a methyl group); R 9 is preferably (1) a ring A, (2) a C2-4 alkyl group which may be substituted with halogen or a hydroxy group, (3) -ring B-ring C, (4) -ring B-methylene-ring C, or (5) -ring B-O-ring C (R 9 is
  • a particularly preferable compound is a compound represented by the general formula (II-1-2): (wherein R 4 and R 5 are each independently halogen or a methyl group (preferably, R 4 and R 5 are each independently halogen); R 6 is a hydrogen atom or halogen (preferably, a hydrogen atom); R 8 is a hydrogen atom or a methyl group (preferably, a hydrogen atom); R 9 is a 5- to 6-membered monocyclic unsaturated heterocycle including one to three heteroatoms selected from an oxygen atom, a nitrogen atom, and a sulfur atom, which may be substituted with one to three substituents (preferably one substituent) each selected from the group consisting of (1) halogen, (2) a C1-4 alkyl group which may be substituted with halogen, and (3) a C1-4 alkoxy group which may be substituted with halogen (preferably selected from the group consisting of halogen and a C1-4 alkyl group which may be substituted with halogen) (R 9
  • a particularly preferable compound is a compound represented by the general formula (II-2-2): (wherein R 4 and R 5 are each independently halogen or a methyl group (preferably, R 4 and R 5 are each independently halogen); R 6 is a hydrogen atom or halogen (preferably, a hydrogen atom); R 8 is a hydrogen atom or a methyl group (preferably, a hydrogen atom); R 9 is a 5- to 6-membered monocyclic unsaturated heterocycle including one to three heteroatoms selected from an oxygen atom, a nitrogen atom, and a sulfur atom, which may be substituted with one to three substituents (preferably one substituent) each selected from the group consisting of (1) halogen, (2) a C1-4 alkyl group which may be substituted with halogen, and (3) a C1-4 alkoxy group which may be substituted with halogen (preferably selected from the group consisting of halogen and a C1-4 alkyl group which may be substituted with halogen) (R 9
  • a preferable compound is:
  • the compound of the present invention is preferably a compound in which the opening action with respect to the KCNQ2/3 is 100 ⁇ M or less, more preferably 10 ⁇ M or less, further preferably 1 ⁇ M or less, and particularly preferably 0.1 ⁇ M or less in terms of EC 50 value (or ECrtg50 (see (1) Biological Example 1 described later)).
  • the compound of the present invention is further preferably a compound having the opening action with respect to all the KCNQ2/3, KCNQ4, and KCNQ5 channels (in any channels, the EC 50 value (or ECrtg 50) is preferably 100 ⁇ M or less, more preferably 10 ⁇ M or less, and further preferably 1 ⁇ M or less).
  • the EC 50 value is determined preferably by a fluorescence measurement method, and more preferably by the method described in the section of (1) Biological Example 1 described later.
  • the compound of the present invention is preferably a compound having excellent solubility.
  • DMSO dimethyl sulfoxide
  • a compound having the solubility of 20 ⁇ M or more is preferable, more preferably 40 ⁇ M or more, further preferably 60 ⁇ M or more, and particularly preferably 80 ⁇ M or more is preferable.
  • the compound of the present invention is preferably a compound having excellent metabolic stability.
  • the metabolic stability can be verified by a general measurement method using, for example, a liver microsome of human or other animal species (preferably, human).
  • the stability of the compound in a human liver microsome can be evaluated by, for example, reacting a commercially available human liver microsome and the compound of the present invention with each other for a predetermined time (for example, 5 to 30 minutes), and calculating the residual rate in comparison between the reacted sample and unreacted sample (see, (4) Evaluation of Stability in Human Liver Microsome, described later).
  • the compound of the present invention is preferably a compound that is excellent in safety.
  • the compound of the present invention includes a compound which does not acts on hERG (human ether-a-go-go related gene) channel, or a compound which has a weak hERG channel inhibition action.
  • the hERG channel inhibition action can be evaluated by well-known methods, for example, a rubidium method for measuring flow of rubidium ion (Rb+) in hERG expression cell, and a patch clamp test for measuring HERG current by a patch clamp technique (see, (5) Evaluation of Activity with respect to hERG IKr Current, described later).
  • stereoisomers are included.
  • all of geometrical isomers of double bonds, rings, and fused rings E-, Z-, cis-, trans-isomers
  • optical isomers by the presence of an asymmetric carbon atom R-, S-isomer, ⁇ -, ⁇ -configurations, enantiomers, diastereomers
  • optical active isomers having optical rotation property D, L, d, 1-isomers
  • polar isomers according to chromatographic separation high-polarity isomer and low-polarity isomer
  • equilibrium compound rotamers, mixtures thereof at any rate, and racemic mixtures
  • the present invention also encompasses all isomers by tautomers.
  • a symbol represents a binding to the far side of the paper (that is to say, the a-configuration), represents a binding to the front of the paper (that is to say, the ⁇ -configuration), and represents ⁇ -configuration, ⁇ -configuration or an arbitrary mixture thereof.
  • the optically active compound of the present invention is not limited to a compound having purity of 100%, but may include other enantiomer or diastereomer having purity of less than 50%.
  • Specific examples of the racemic mixture include Example 5:1-[2,6-dichloro-4-(1,1,1-trifluoro-2-hydroxy-2-propanyl)phenyl]-3- ⁇ [5-(trifluoromethyl)-2-pyridinyl]methyl ⁇ urea that is a mixture of Example 22(1):1- ⁇ 2,6-dichloro-4-[(2R)-1,1,1-trifluoro-2-hydroxy-2-propanyl]phenyl ⁇ -3- ⁇ [5-(trifluoromethyl)-2-pyridinyl]methyl ⁇ urea and Example 25(4):1- ⁇ 2,6-dichloro-4-[(2S)-1,1,1-trifluoro-2-hydroxy-2-propanyl]phenyl ⁇ -3- ⁇ [5-(trifluoromethyl)-2-pyridinyl]
  • the compound of the present invention includes a compound represented by the general formula (I), a salt thereof, a solvate thereof, or a cocrystal thereof, and a solvate of the salt of the compound represented by the general formula (I), or a cocrystal thereof.
  • the compound represented by the general formula (I) is converted into a corresponding salt by a well-known method.
  • pharmaceutically acceptable salts are preferable.
  • water-soluble salt is preferable.
  • Appropriate salts include acid addition salts (inorganic acid salts (hydrochloride, hydrobromide, hydroiodide, sulfate, phosphate, nitrate, and the like), organic acid salts (formate, acetate, propionate, trifluoro acetate, lactate, tartrate, oxalate, malonate, succinate, fumarate, malate, maleate, benzoate, citrate, methanesulfonate, ethanesulfonate, benzenesulfonate, toluenesulfonate, isethionate, glucuronate, gluconate, aspartate, glutamate, and the like).
  • the compound represented by the general formula (I) and a salt thereof may be present in a not-solvation form, or in a solvation form with pharmaceutically acceptable solvent such as water and ethanol.
  • pharmaceutically acceptable solvent such as water and ethanol.
  • Preferable solvates is hydrate.
  • the compound represented by the general formula (I) and a salt thereof can be converted into a solvate by a well-known method.
  • the compound represented by the general formula (I) can form a cocrystal with an appropriate cocrystal former.
  • pharmaceutically acceptable cocrystal that is formed with a pharmaceutically acceptable cocrystal former is preferable.
  • the cocrystal is typically defined as a crystal that is formed of two or more different molecules by intermolecular interaction that is different from ionic bond.
  • the cocrystal may be a composite of a neutral molecule and a salt.
  • the cocrystal can be prepared by a well-known method, for example, melting crystallization, recrystallization from a solvent, or physically pulverizing the components together.
  • Appropriate cocrystal formers include ones described in WO2006/007448 .
  • a prodrug of the compound represented by the general formula (I) denotes a compound which is converted to the compound represented by the general formula (I) by a reaction with an enzyme, gastric acid, and the like, in a living body.
  • Prodrugs of the compound represented by the general formula (I) include: compounds in which the hydroxyl group is acylated, alkylated, phosphorylated, or borated, when the compounds represented by the general formula (I) have a hydroxyl group (for example, the compounds represented by the general formula (I) in which the hydroxyl group is acetylated, palmitoylated, propanoylated, pivaloylated, succinylated, fumarylated, alanylated, or dimethylaminomethylcarbonylated). These compounds can be produced by well-known methods. Furthermore, the prodrug of the compound represented by the general formula (I) may be hydrate or non-hydrate.
  • the prodrug of the compound represented by the general formula (I) may be a compound which is changed into the compound represented by the general formula (I) under the physiological condition, as described in " Development of Medicaments", vol.7 “Molecular Design”, pp.163-198, published by Hirokawa Shoten in 1990 .
  • the compound represented by the general formula (I) includes all isotopes. That is, includes the compounds, wherein at least one atom is replaced by an atom which having atomic number same as the original atom but atomic mass or mass number different from the atomic mass or mass number dominant in the natural world.
  • Examples of the isotopes included in the compound represented by the general formula (I) include 2 H, 3 H, 11 C, 13 C, 14 C, 13 N, 15 N, 15 O, 17 O, 18 O, 35 S, 18 F, 36 Cl, 123 I, 125 I, and the like.
  • the compound represented by the general formula (I) can be produced by the well-known methods, for example, the methods described below, the methods conforming to these methods, methods described in Examples, or the method described in " Comprehensive Organic Transformations: A Guide to Functional Group Preparations, 2nd Edition (Richard C. Larock, John Wiley & Sons Inc, 1999 )", or the like, with appropriate modification and in combination thereof.
  • each raw material compound may be used as a salt.
  • Such a salt include salts described as above-mentioned pharmaceutically acceptable salts of the general formula (I) .
  • a compound represented by the general formula (I-1) in which R 11 is OR 1 among the compound represented by the general formula (I) can be produced by the method shown in the following reaction scheme 1 or 2 using a compound represented by the general formula (SM1): (wherein T represents R 1 or a protective group for a hydroxyl group, and the other symbols represent the same meanings as mentioned above) as a starting material.
  • SM1 a compound represented by the general formula (SM1): (wherein T represents R 1 or a protective group for a hydroxyl group, and the other symbols represent the same meanings as mentioned above) as a starting material.
  • Examples of the protective group for a hydroxyl group in T include a methyl group, an ethyl group, a propyl group, a butyl group, a trityl group, a methoxymethyl (MOM) group, a 1-ethoxyethyl (EE) group, a methoxyethoxymethyl (MEM) group, a 2-tetrahydropyranyl (THP) group, a trimethylsilyl (TMS) group, a triethylsilyl (TES) group, a tert-butyldimethylsilyl (TBDMS) group, a tert-butyldiphenylsilyl (TBDPS) group, an acetyl (Ac) group, a pivaloyl group, a benzoyl group, a benzyl (Bn) group, a p-methoxybenzyl group, an allyloxycarbonyl (Alloc) group,
  • the protective groups are not particularly limited to the above-described groups, and may include, in addition to the above-mentioned groups, groups that can be detached easily and selectively. For example, those described in " Protective Groups in Organic Synthesis (T. W. Greene, John Wiley & Sons Inc, 1999 )" may be used.
  • a compound in which Y is -NH- or -O- among the compound represented by the general formula (I), that is, a compound represented by the general formula (1-a): (wherein Y 1 represents -NH- or -O-, and the other symbols represent the same meanings as mentioned above) can be produced by a method shown in the reaction scheme 1: (wherein all of the symbols represent the same meanings as mentioned above).
  • the reaction to form urea or urethane shown in the reaction 1 in the reaction scheme 1 is carried out by, for example, reacting a compound represented by the general formula (SM1) with triphosgene at temperatures from room temperature to 40°C in an organic solvent (tetrahydrofuran, N-methyl-2-pyrrolidinone, N,N-dimethylformamide, dichloromethane, and the like) in the presence of a base (triethylamine, diisopropyl ethyl amine, and the like) so as to form a corresponding isocyanate, and then reacting with the compound represented by the general formula (1-b) in an organic solvent (tetrahydrofuran, N-methyl-2-pyrrolidinone, dichloromethane, and the like) at temperatures from room temperature to 60°C in the presence or absence of a base (triethylamine, diisopropyl ethyl amine, and the like).
  • SM1 compound represented by the general formula (SM
  • the reaction for generating isocyanate from the compound represented by the general formula (SM1) and the reaction for reacting the compound represented by the general formula (1-b) may be carried out in the opposite order.
  • the reaction is carried out, for example, in the organic solvent (dichloromethane, N,N-dimethylformamide), in the presence of 1,1'-carbonylbis-1H-imidazole (CDI), in the presence or absence of base (triethylamine, N-methyl morpholine, and the like) at about 0 to 80°C. It is desirable that any of these reactions be carried out under the atmosphere of inert gas (argon, nitrogen, and the like) in the anhydrous condition.
  • inert gas argon, nitrogen, and the like
  • the deprotection reaction of the protective group for the hydroxyl group is well known, and can be carried out by the methods mentioned below. Examples thereof include:
  • the deprotection reaction can be carried out by, for example, the method described in " Protective Groups in Organic Synthesis (T.W.Greene, John Wiley&Sons Inc, 1999 )".
  • the objective compound of the present invention can be easily produced by appropriately using these deprotection reactions.
  • a compound in which Y is a bond among the compounds represented by the general formula (I), that is, a compound represented by the general formula (2-a): (wherein all of the symbols represent the same meanings as mentioned above) can be produced by a method shown in the reaction scheme 2: (wherein all of the symbols represent the same meanings as mentioned above).
  • the objective compound can be produced by subjecting the compound represented by the general formula (SM1) and the compound represented by the general formula (2-b) to the reaction 3: amidation reaction, and to the reaction 4: deprotection reaction of a hydroxyl group if necessary.
  • amidation reaction is well known, and examples thereof include:
  • the deprotection reaction of a hydroxyl group can be carried out in the same manner as in the deprotection reaction of a hydroxyl group described in the reaction scheme 1.
  • the compound represented by the general formula (SM1) can be produced using the compound represented by the general formula (3-a): (wherein W represents halogen (Cl, Br, I) or a Tf (trifluoromethanesulphonyl) O group, or a Ts (toluenesulphonyl) O group, R 41 and R 51 each represent the same meaning as those of R 4 and R 5 (wherein, both R 41 and R 51 may be simultaneously a hydrogen atom), and the other symbols represent the same meanings as mentioned above); and the compound represented by the general formula (3-b) : (wherein all of the symbols represent the same meanings as mentioned above), or the compound represented by the general formula (3-g): (wherein X represents halogen (Cl, Br, I), R 100 and R 110 each independently represent a hydrogen atom or a protective group of an amino group, the other symbols represent the same meanings as mentioned above), as starting materials, by a method shown in the reaction scheme 3: (wherein all of the symbols represent the same meaning
  • the compounds represented by the general formula (3-a) in which W is a TfO group or a TsO group can be produced from a compound in which W is a hydroxyl group by a well-known method, for example, the method described in " Comprehensive Organic Transformations: A Guide to Functional Group Preparations, second edition (Richard C. Larock, John Wiley & Sons Inc, 1999 )” and the like. Furthermore, they can be produced by the method described in Example 37.
  • Examples of the protective group for an amino group in R 100 and R 110 include a benzyloxycarbonyl group, a tert-butoxycarbonyl (Boc) group, an allyloxycarbonyl (Alloc) group, a 1-methyl-1-(4-biphenyl)ethoxycarbonyl (Bpoc) group, a trifluoroacetyl group, a 9-fluororenylmethoxycarbonyl group (Fmoc), a benzyl (Bn) group, a p-methoxybenzyl group, a benzyloxymethyl (BOM) group, a 2-(trimethylsilyl)ethoxymethyl (SEM) group, and the like.
  • a benzyloxycarbonyl group a tert-butoxycarbonyl (Boc) group, an allyloxycarbonyl (Alloc) group, a 1-methyl-1-(4-biphenyl)ethoxycarbonyl (
  • the protective groups are not particularly limited to the above-described groups, and may include, in addition to the above-mentioned groups, groups that can be detached easily and selectively. For example, those described in " Protective Groups in Organic Synthesis (T. W. Greene, John Wiley & Sons Inc, 1999 )" may be used.
  • the nucleophilic reaction shown in the reactions 5 and 6 is carried out by reacting the compound represented by the general formula (3-a) or the general formula (3-b) with an organic metal reagent corresponding to R 3 , for example, alkyl(R 3 ) magnesium bromide, alkyl (R 3 ) lithium in an organic solvent (tetrahydrofuran, diethyl ether, and the like) in the presence or absence of cerium chloride at temperatures from -78°C to room temperature.
  • an organic metal reagent corresponding to R 3 for example, alkyl(R 3 ) magnesium bromide, alkyl (R 3 ) lithium in an organic solvent (tetrahydrofuran, diethyl ether, and the like) in the presence or absence of cerium chloride at temperatures from -78°C to room temperature.
  • reaction is carried out also by reacting Rupert reagent (trifluoromethyl trimethyl silane) in the organic solvent (tetrahydrofuran, diethyl ether, and the like) in the presence of tetrabutyl ammonium fluoride at temperatures from -78°C to room temperature.
  • Rupert reagent trifluoromethyl trimethyl silane
  • organic solvent tetrahydrofuran, diethyl ether, and the like
  • the reduction reaction shown in the reactions 5 and 6 is carried out by reacting the compound represented by the general formula (3-a) (wherein R 2 is other than hydrogen) with a reducing agent (sodium borohydride, lithium borohydride, lithium aluminum hydride, diisobutylaluminium hydride, and the like) in an organic solvent (methanol, ethanol, tetrahydrofuran, hexane, and the like) at temperatures from -78°C to 80°C.
  • a reducing agent sodium borohydride, lithium borohydride, lithium aluminum hydride, diisobutylaluminium hydride, and the like
  • organic solvent methanol, ethanol, tetrahydrofuran, hexane, and the like
  • the amination reaction shown in the reaction 7 is carried out by reacting the compound represented by the general formula (3-c) and the compound represented by the general formula (3-d) at temperatures from room temperature to -120°C, in an organic solvent (ethyl acetate, isopropyl acetate, benzene, toluene, xylene, heptane, cyclohexane, tetrahydrofuran, dioxane, dimethoxyethane, ethanol, isopropanol, polyethylene glycol, dimethyl sulfoxide, N,N-dimethylformamide, N,N-dimethyl acetamide, N-methyl-2-pyrrolidinone, methylene chloride, chloroform, acetone, acetonitrile, water, or the mixture thereof, or the like), in the presence of base (diethylamine, triethylamine, propyl amine, diisopropyl amine, diis
  • the halogen - metal exchange reaction of aryl halide, and subsequent nucleophilic reaction shown in reaction 8 are carried out by reacting the compound represented by the general formula (3-g) with an organic metal reagent (n-butyllithium, tert-butyllithium, isopropylmagnesium bromide, isopropylmagnesium chloride) in an organic solvent (tetrahydrofuran, diethyl ether, and the like) at temperatures from -78 to 60°C, and then reacting the compound represented by the general formula (3-h) in an organic solvent ( tetrahydrofuran, diethyl ether, and the like) at temperatures from -78 to 60°C.
  • an organic metal reagent n-butyllithium, tert-butyllithium, isopropylmagnesium bromide, isopropylmagnesium chloride
  • an organic solvent tetrahydrofuran, diethyl ether, and the like
  • protection reactions of a hydroxyl group shown in the reactions 9, 12, and 14 are carried out if necessary.
  • the protection reaction is carried out by, for example, reacting the compounds represented by the general formulae (3-e), (3-f), and (3-k) with a silylating agent (chlorotrimethylsilane, chlorotriethylsilane, chloro-tert-butyl dimethylsilane, chloro-tert-butyl diphenylsilane, and the like) in an organic solvent (tetrahydrofuran, dichloromethane, and the like) in the presence of a base (imidazole, triethylamine, and the like) at temperatures from 0°C to room temperature.
  • a silylating agent chlorotrimethylsilane, chlorotriethylsilane, chloro-tert-butyl dimethylsilane, chloro-tert-butyl diphenylsilane, and the like
  • organic solvent tetra
  • the protective groups are not particularly limited to the above-described groups, and may include, in addition to the above-mentioned groups, groups that can be detached easily and selectively. For example, those described in " Protective Groups in Organic Synthesis (T. W. Greene, John Wiley & Sons Inc, 1999 )" may be used.
  • the reduction reactions of a nitro group shown in the reactions 10 and 13 are carried out with respect to the compound represented by the general formula (3-e) or (3-i) in a solvent (ethers (tetrahydrofuran, dioxane, dimethoxyethane, diethyl ether, and the like), alcohols (methanol, ethanol, and the like), benzenes (benzene, toluene, and the like), ketones (acetone, methyl ethyl ketone, and the like), nitriles (acetonitrile, and the like), amides (dimethylformamide, and the like), water, ethyl acetate, acetic acid, or a mixture of two or more thereof, etc.) in the presence of a catalyst (palladium-carbon, palladium black, palladium hydroxide, platinum oxide, Raney nickel, etc.) under hydrogen atmosphere at normal pressure or elevated pressure, or in the presence of ammonium formate at temperatures
  • reaction is carried out using a metal reagent (zinc, iron, tin, tin chloride, iron chloride, samarium, indium, sodium borohydride-nickel chloride and the like) in a water-miscible solvent (ethanol, methanol, tetrahydrofuran, and the like), in the presence or absence of acids (hydrochloric acid, hydrobromic acid, ammonium chloride, acetic acid, ammonium formate, and the like) at temperatures of about 0 to 150°C.
  • a metal reagent zinc, iron, tin, tin chloride, iron chloride, samarium, indium, sodium borohydride-nickel chloride and the like
  • ethanol methanol, tetrahydrofuran, and the like
  • acids hydrochloric acid, hydrobromic acid, ammonium chloride, acetic acid, ammonium formate, and the like
  • the deprotection reaction of an amino group shown in the reactions 11 and 15 can be carried out by the following method.
  • the protective groups are not particularly limited to the above-described groups, and may include, in addition to the above-mentioned groups, groups that can be detached easily and selectively. For example, those described in " Protective Groups in Organic Synthesis (T. W. Greene, John Wiley & Sons Inc, 1999 )" may be used.
  • the halogenation reaction shown in the reaction 16 is carried out by reacting the compound represented by the general formula (3-n) with a halogenation reagent (N-chlorosuccinimide, 1,3-dichloro-5,5-dimethylhydantoin, N-bromosuccinimide, N-iodosuccinimide, and the like) in an organic solvent (acetonitrile, N,N-dimethylformamide, and the like) at temperatures from 0 to 80°C.
  • a halogenation reagent N-chlorosuccinimide, 1,3-dichloro-5,5-dimethylhydantoin, N-bromosuccinimide, N-iodosuccinimide, and the like
  • organic solvent acetonitrile, N,N-dimethylformamide, and the like
  • a compound represented by the general formula (I) in which R 11 is NH 2 , and Y is -NH- or -O-, that is, a compound represented by the general formula (4-a) (wherein Y 1 is -NH- or -O-, the other symbols represent the same meanings as mentioned above) can be produced by a method shown in the reaction scheme 4 (wherein all of the symbols represent the same meanings as mentioned above) using the compound represented by the general formula (SM2).
  • reaction to form urea or the reaction to form urethane shown in the reaction 17 can be carried out by the same method as in the reaction 1 described in the reaction scheme 1 above.
  • the reduction reaction of an azide group shown in the reaction 18 is carried out by reacting triphenylphosphine in a mixed solvent of an organic solvent (tetrahydrofuran, dimethyl ethyl ether, and the like) and water at room temperature. Furthermore, the reaction is also carried out by reacting lithium aluminum hydride in the organic solvent (tetrahydrofuran, and the like) while heating and refluxing from 0°C.
  • a compound represented by the general formula (I) in which R 11 is NH 2 , and Y is a bond, that is, a compound represented by the general formula (5-a) (wherein all of the symbols represent the same meanings as mentioned above) can be produced by a method shown in the reaction scheme 5 (wherein all of the symbols represent the same meanings as mentioned above) using the compound represented by the general formula (SM2).
  • the amidation reaction shown by the reaction 19 can be carried out by the same method as in the reaction 3 described in the reaction scheme 2 described above.
  • the reduction reaction shown by the reaction 20 can be carried out by the same method as in the reaction 18 described in the reaction scheme 4 above.
  • the compound represented by the general formula (SM2) can be produced by the method shown by the reaction scheme 6 (wherein all of the symbols represent the same meanings as mentioned above) using the compound represented by general formula (SM1) as a starting material.
  • the deprotection reaction of a hydroxyl group shown by the reaction 21 can be carried out in the same manner as in the deprotection reaction of a hydroxyl group shown by the reaction scheme 1 above.
  • the conversion reaction of a hydroxyl group into an azide group is carried out by reacting the compound represented by the general formula (6-a) with sodium azide or potassium azide in an organic solvent (chloroform, dichloromethane, and the like), in the presence of trifluoroacetic acid, at room temperature. Furthermore, the reaction is also carried out by reacting diphenyl phosphorazidate and 2,3,4,6,7,8,9,10-octahydropyrimido[1,2-a]azepine in the organic solvent (toluene, tetrahydrofuran, and the like) at temperatures from 0°C to room temperature.
  • an organic solvent chloroform, dichloromethane, and the like
  • optically active substance of the compound represented by the general formula (I) can be produced by a routine procedure (for example, an optical resolution method using a chiral column, and the like). Furthermore, the optically active substance of the compound represented by the general formula (I) can also be produced by the method shown in the above reaction scheme by using the optical isomer of the compounds represented by the general formulae (3-c), (3-e), (3-f), (3-i), (3-k), (3-m), (3-n), (SM1), (4-b), (5-b), (6-a), and (SM2) separated in advance by an optical resolution method such as a routine procedure (for example, an optical resolution method using a chiral column, and the like) or the method described in the Examples of the present specification.
  • a routine procedure for example, an optical resolution method using a chiral column, and the like
  • a solid-supported reagent which is supported on a high molecular polymer for example, polystyrene, polyacrylamide, polypropylene, polyethylene glycol, and the like
  • a high molecular polymer for example, polystyrene, polyacrylamide, polypropylene, polyethylene glycol, and the like
  • reaction products can be purified by usual purification methods, for example, by distillation at normal or reduced pressure, by high performance liquid chromatography using silica gel or magnesium silicate, thin layer chromatography, ion-exchange resin, scavenger resin, or column chromatography, or washing, recrystallization, or the like.
  • the purification may be carried out after each reaction or after several reactions.
  • the compound of the present invention has sufficiently low toxicity, and can be safely used as pharmaceuticals.
  • the compound of the present invention is suitable for preventing and/or treating KCNQ2-5 channel-related diseases.
  • the compound of the present invention can be used for preventing and/or treating KCNQ2-5 channel-related diseases.
  • diseases include epilepsy, pain disorders (for example, neurogenic pain, and migraine), diabetic peripheral nerve disorders, anxiety disorders, mood adjustment disorders, schizophrenic disorders, drug dependence, attention adjustment disorders, sleep disorders, cerebral stroke, tinnitus, memory disorders (for example, Alzheimer's disease, and dementia), amyotrophic lateral sclerosis, movement disorders (for example, Parkinson's disease, and dystonia-related movement disorder), dysuria (for example, overactive urinary bladder, urinary frequency, nocturia, urinary urgency, urge urinary incontinence, stress urinary incontinence, interstitial cystitis, chronic prostatitis, and benign prostatic hypertrophy), hardness of hearing, asthma, chronic obstructive pulmonary disease, coughing, pulmonary hypertension, neurodegenerative disease of visual organ (for example, glaucoma, progressive diabetic retinopathy, maculopathy with aging, retina
  • the compound of the present invention is suitable for preventing and/or treating preferably dysuria.
  • the compound of the present invention is suitable for preventing and/or treating more preferably overactive urinary bladder.
  • the overactive urinary bladder is symptoms or syndromes involving certainly urinary urgency, usually urinary frequency and nocturia, and sometimes urinary incontinence.
  • the compound of the present invention is used for preventing and/or treating dysuria, in order to avoid central nervous system adverse effects such as dizziness and sleepiness, it is preferable that the intracerebral migration of the compound of the present invention is low. Therefore, the compound of the present invention is preferably a compound having the reduced intracerebral migration.
  • the intracerebral migration can be evaluated by, for example, intracerebral content or the calculated intracerebral migration rate (intracerebral content / plasma concentration) obtained by administering a test substance to mammals (for example, rat and mouse) by oral administration or intravenous administration, and measuring the plasma concentration and/or the intracerebral content after the administration (for example, one hour after the administration).
  • the compound of the present invention may be administered as a combination drug in combination with other drugs in order to accomplish the following purposes:
  • a combination drug of the compound of the present invention and one or more of other drugs may be administered in the form of a compounding agent including all the components mixed into one formulation, or may be administered in separate formulations.
  • Administration as separate formulations includes simultaneous administration and administration at different times. In the administration at different times, the compound of the present invention may be administered before the other drug. Alternatively, the other drug may be administered before the compound of the present invention.
  • the method for the administration of these drugs may be the same as or different from each other.
  • Examples of other drugs to supplement and/or enhancement for preventive and/or therapeutic effect for overactive urinary bladder by the compound of the present invention include: (1) muscarinic receptor antagonists (for example, tolterodine, oxybutynin, hyoscyamine, propantheline, propiverine, trospium, solifenacin, dalifenacin, imidafenacin, fesoterodine, temiverine, flavoxate, tarafenacin, afacifenacin, THVD-101, THVD-201, and the like), (2) ⁇ 3 adrenergic receptor agonist (Mirabegron, KRP-114V, Solabegron, TRK-380, and the like), (3) NK-1 or -2 antagonist (for example, aprepitant, cizolirtine, and the like), (4) genetically modified botulinus toxin (senrebotase, and the like), (5) opioid
  • a dosage of the other drugs can be appropriately selected on the basis of the clinical dose. Further, a mixing proportion of the compound of the present invention and the other drugs can be appropriately selected on the basis of age and body weight of a subject, medication method, administration period, disease, symptoms or combination thereof, and the like. For example, 0.01 to 100 parts by mass of the other drugs for one part by mass of the compound of the present invention may be used. Any two or more other drugs may be administered in combination at a suitable proportion. Furthermore, the other drugs include not only drugs which have been found to date but also drugs that will be found in the future.
  • the compound of the present invention or combination agents of the compound of the present invention and other agents are used for the above-mentioned purposes, they are usually administered systemically or locally, usually by oral or parenteral administration after, usually, they are formulated together with pharmaceutically acceptable carrier in an appropriate pharmaceutical composition.
  • the compound of the present invention is administered to mammal (preferably, human, and more preferably, patient) in an effective amount.
  • doses of the compound of the present invention are dependent on ages, body weight, symptoms, desired therapeutic effect, administration route, treatment time, and the like, it inevitably varies.
  • the doses per patient are generally from 0.1 mg to 1000 mg per dose, once to several times per day, by oral administration, or from 0.01 mg to 100 mg per dose, once or several times per day, by parenteral administration, or continuous administration for 1 to 24 hours per day intravenously.
  • the doses to be used vary dependent upon various conditions. Therefore, doses lower than the ranges specified above may be sufficient in some cases, and doses higher than the ranges specified above are needed in some cases.
  • the compound of the present invention or the combined preparation of the compound of the present invention and other pharmaceutical is administered, it is used as internal solid composition and internal liquid composition for oral administration, sustained release preparation and controlled release preparation for oral administration, and injection, external preparation, inhalant, suppository for parenteral administration, or the like.
  • Examples of the internal solid composition for oral administration includes tablets, pills, capsules, powder and granules.
  • the capsules include hard capsules and soft capsules.
  • one or more active substance(s) is used by itself or by being mixed with vehicle (for example, lactose, mannitol, glucose, microcrystalline cellulose, and starch, and the like), binding agent (for example, hydroxypropylcellulose, polyvinyl pyrrolidone, and magnesium aluminometasilicate, and the like), disintegrator (for example, calcium carboxymethylcellulose and the like), lubricant (for example, magnesium stearate and the like), stabilizer, a dissolution aid (for example, glutamic acid, aspartic acid, and the like), and the like, and being pharmaceutically manufactured by a conventional method.
  • vehicle for example, lactose, mannitol, glucose, microcrystalline cellulose, and starch, and the like
  • binding agent for example, hydroxypropylcellulose, polyvinyl pyrrolidone, and magnesium aluminometasilicate, and the like
  • disintegrator for example, calcium carboxymethylcellulose and the like
  • the solid composition may be coated with coating (for example, saccharose, gelatin, hydroxypropylcellulose or hydroxypropylmethylcellulose phthalate, and the like), if necessary, or may be coated with two or more layers.
  • coating for example, saccharose, gelatin, hydroxypropylcellulose or hydroxypropylmethylcellulose phthalate, and the like
  • the internal liquid composition for oral administration includes pharmaceutically acceptable solution, suspension, emulsum, syrup and elixir, and the like.
  • one or more active substance(s) is dissolved, suspended or emulsified in a commonly used inert diluent (for example, purified water, ethanol or the mixture thereof, and the like).
  • the composition may contain humectant, suspending agent, emulsifying agent, sweetener, flavor, aromatic agent, preservative and buffer, and the like.
  • sustained release preparation in oral administration is also effective.
  • a gel formation substance to be used for these sustained release preparation is a substance that is swelled by including a solvent, the colloid particles thereof are linked to each other to form a three-dimensional network structure, and can form a jelly-like substance which has lost fluidity.
  • it is mainly used as a binding agent, a thickener, and sustained release base material.
  • gum arabic for example, gum arabic, agar, polyvinyl pyrrolidone, sodium alginate, propylene glycol alginate, carboxyvinyl polymer, carboxymethyl cellulose, sodium carboxymethylcellulose, guar gum, gelatin, hydroxypropylmethyl cellulose, hydroxypropyl cellulose, polyvinyl alcohol, methyl cellulose, or hydroxyethyl methyl cellulose, can be used.
  • the injection agents for parenteral administration include solutions, suspensions, emulsions and solid injection agents to be dissolved in a solvent before use.
  • the injection agent is used by dissolving, suspending or emulsifying one or more active substance(s) in a solvent.
  • the solvent include distilled water for injection, physiological saline, vegetable oils, alcohols such as propylene glycol, polyethylene glycol, ethanol, and mixtures thereof.
  • the injection agent may contain a stabilizer, a dissolution aid (glutamic acid, aspartic acid, and Polysorbate 80 (registered trademark), and the like), a suspending agent, an emulsifying agent, a soothing agent, a buffer, a preservative, and the like.
  • Such an injection agent is produced by sterilizing at the final step or employing an aseptic process. Furthermore, it is also possible to employ as an aseptic solid product (for example, produced freeze-dried product is dissolved in distilled water for injection or other solvent, wherein the said distilled water for injection or other solvent are aseptic or are sterilized before use).
  • as an aseptic solid product for example, produced freeze-dried product is dissolved in distilled water for injection or other solvent, wherein the said distilled water for injection or other solvent are aseptic or are sterilized before use).
  • Examples of the external preparation for parenteral administration includes a nebulizer, an inhalant, a spray agent, an aerosol agent, ointments, gels, creams, poultices, plasters, liniments, and nasal agents. These may contain one or more active substance(s) and may be prepared by well-known methods or conventional methods.
  • the nebulizer, an inhalant, and a spray agent may contain a stabilizer such as sodium hydrogen sulfite, a buffer agent that provides isotonicity, and an isotonic agent, for example, sodium chloride, sodium citrate, or citric acid, other than a generally used diluent.
  • a stabilizer such as sodium hydrogen sulfite
  • a buffer agent that provides isotonicity such as sodium hydrogen sulfite
  • an isotonic agent for example, sodium chloride, sodium citrate, or citric acid
  • the inhalation agent for parenteral administration includes aerosol preparation, powder for inhalation and liquid for inhalation.
  • the liquid for inhalation may be a form such as the ingredient is dissolved or suspended in water or in other appropriate medium at time of use.
  • an antiseptic agent for example, benzalkonium chloride, paraben, and the like
  • a coloring agent for example, a buffer (for example, sodium phosphate, sodium acetate, and the like), an isotonizing agent (for example, sodium chloride, concentrated glycerol, and the like), a thickener (carboxyvinyl polymer and the like), an absorption promoter, and the like
  • an antiseptic agent for example, benzalkonium chloride, paraben, and the like
  • a coloring agent for example, benzalkonium chloride, paraben, and the like
  • a buffer for example, sodium phosphate, sodium acetate, and the like
  • an isotonizing agent for example, sodium chloride, concentrated glycerol, and the like
  • a thickener for example, sodium chloride, concentrated glycerol, and the like
  • an absorption promoter for example, a thickener (carboxyvinyl polymer and the like),
  • lubricant for example, stearic acid, salt thereof, and the like
  • a binder for example, starch, dextrin, and the like
  • an excipient for example, lactose, cellulose, and the like
  • a coloring agent for example, benzalkonium chloride or paraben, and the like
  • absorption promoter for example, benzalkonium chloride or paraben, and the like
  • a spraying device for example, atomizer, nebulizer, or the like
  • an administering device for inhalation of powdery pharmaceutical is usually used.
  • An ointment is produced by well-known methods or generally used prescriptions.
  • an ointment is produced by mixing or melting of one or more active substance(s) into base material.
  • the ointment base material is selected from well-known material or generally used material.
  • a single material or a mixture of two or more of materials are selected from higher fatty acids and higher fatty acid esters (for example, adipic acid, myristic acid, palmitic acid, stearic acid, oleic acid, adipate esters, myristate esters, palmitate esters, stearate esters, and oleate esters), waxes (for example, beeswax, spermaceti, and ceresin), surfactants (for example, polyoxyethylene alkyl ether phosphate esters), higher alcohols (for example, cetanol, stearyl alcohol, and cetostearyl alcohol), silicone oils (for example, dimethylpolysiloxane), hydrocarbons (for example, hydrophilic petrolatum, white petrolatum, purified lanolin, and liquid paraffin), glycols (for example, ethylene glycol, diethylene glycol, propylene glycol, polyethylene glycol, and macrogol), plant oils (for example, castor cast
  • the gel is prepared by well-known methods or usually used methods. For example, it may be prepared by melting one or more active substance(s) into a base.
  • the gel base is chosen from well-known or usually used ones. For example, it is used by mixing with one or more base(s) chosen from lower alcohol (for example, ethanol and isopropyl alcohol, and the like), gelatinizer (for example, carboxymethylcellulose, hydroxyethylcellulose, hydroxypropylcellulose or ethylcellulose, etc.), neutralizer (for example, triethanolamine or diisopropanolamine, etc.), surfactant (for example, polyethylene glycol monostearate etc.), gums, water, absorption promoter and anti-rash agents. Further, it may include preservative, anti-oxidant or flavor, etc.
  • lower alcohol for example, ethanol and isopropyl alcohol, and the like
  • gelatinizer for example, carboxymethylcellulose, hydroxyethylcellulose, hydroxypropylcellulose or ethylcellulose
  • the cream is prepared by known or commonly used formulation.
  • a cream is produced by melting or emulsifying one or more active substance(s) in a base.
  • the cream base is selected from known or commonly used bases.
  • the cream base include higher fatty acid esters, lower alcohols, hydrocarbons, polyhydric alcohols (such as propylene glycol and 1,3-butylene glycol,), higher alcohols (such as 2-hexyldecanol and cetanol), emulsifying agents (such as polyoxyethylene alkyl ethers and fatty acid esters), water, absorption enhancers, and anti-rash agents. From these bases, one base is selected and used singly or two or more bases are selected and used in admixture.
  • the cream may further contain a preservative, an anti-oxidant, an aromatizing agent, or the like.
  • the poultice is produced according to a known or commonly used formulation.
  • a poultice is produced by melting one or more active substance(s) in a base to form a kneaded material, followed by applying and spreading the kneaded material on a support.
  • the poultice base is selected from known or commonly used bases.
  • the poultice base examples include viscosity increasing agents (for example, polyacrylic acid, polyvinylpyrrolidone, gum arabic, starch, gelatin, and methyl cellulose), humectants (for example, urea, glycerin, and propylene glycol), fillers (for example, kaolin, zinc oxide, talc, calcium, and magnesium), water, dissolution aids, tackifiers, and anti-rash agents. From these bases, one base is selected and used singly or two or more bases are selected and used in admixture.
  • the poultice may further contain a preservative, an anti-oxidant, an aromatizing agent, or the like.
  • the plaster is produced according to a known or commonly used formulation.
  • a plaster is produced by melting one or more active substance(s) in a base and applying and spreading the melt on a support.
  • the plaster base is selected from known or commonly used bases.
  • the plaster base include polymeric bases, oils and fats, higher fatty acids, tackifiers, and anti-rash agents. From these bases, one base is selected and used alone or two or more bases are selected and used in admixture.
  • the plaster may further contain a preservative, an antioxidant, an aromatizing agent, or the like.
  • the liniment is produced according to a known or commonly used formulation.
  • a liniment is prepared by dissolving, suspending, or emulsifying one or more active substances in one or more materials selected from water, an alcohol (for example, ethanol or polyethylene glycol), a higher fatty acid, glycerin, a soap, an emulsifying agent, and a suspending agent.
  • the liniment may further contain a preservative, an anti-oxidant, an aromatizing agent, or the like.
  • compositions for parenteral administration include suppositories for intrarectal administration, pessaries for intravaginal administration, and the like, each containing one or more active substance(s) and formulated according to routine procedure.
  • the solvents in the parenthesis indicated in the separated portion by the chromatography and TLC represent eluting or developing solvents used and their ratio is volume ratio.
  • NMR data is the data of 1 H-NMR unless otherwise stated.
  • Name of the compounds used in the present specification are named by using ACD/Name (registered trademark) manufactured by Advanced Chemistry Development Inc., which is a computer program for naming compounds according to the regulation of IUPAC, or named according to the naming method of IUPAC.
  • Example 2 The compound (2.28 g) produced in Example 1 was suspended in ethanol (50 mL) and water (10 mL), and powder zinc (3.17 g) and acetic acid (2.82 mL) were added thereto. The reaction mixture was stirred over night at 50°C. The reaction mixture was cooled to room temperature. A saturated sodium hydrogencarbonate aqueous solution was added to the mixture, and the resulting mixture solution was stirred for 30 minutes. To the reaction mixture, ethyl acetate was added. The resulting mixture was filtered through a Celite (product name), and the filtrate was extracted with ethyl acetate. The organic layer was washed with saturated brine, was dried over anhydrous magnesium sulfate, and then concentrated under reduced pressure.
  • Example 8 The compound produced in Example 8 instead of 1-[5-(trifluoromethyl)-2-pyridinyl]methanamine hydrochloride was used and subjected to the same procedure as in Example 5 to obtain the title compound having the following physical property values.
  • 1 H-NMR (DMSO-d 6 ) ⁇ 1.29, 1.69, 4.28, 6.78, 6.84, 6.93, 7.64, 8.17.
  • Example 10 The compound produced in Example 10 instead of 1-[5-(trifluoromethyl)-2-pyridinyl]methanamine hydrochloride was used and subjected to the same procedure as in Example 5 to obtain the title compound having the following physical property values.
  • 1 H-NMR (DMSO-d 6 ) ⁇ 1.70, 4.53, 6.94, 7.19, 7.65, 7.96, 8.40.
  • Example 8 (5-tert-butyl-1,2-oxazole-3-yl)methanol (CAS registry number: 202817-06-9) instead of the compound produced in Example 6 was used and subjected to the same procedure as in Example 7 ⁇ Example 8 to obtain the title compound having the following physical property values.
  • Example 12 The compound produced in Example 12 instead of 1-[5-(trifluoromethyl)-2-pyridinyl]methanamine hydrochloride was used and subjected to the same procedure as in Example 5 to obtain the title compound having the following physical property values.
  • cerium chloride 51 g
  • tetrahydrofuran 316 mL
  • Methyllithium 3.0 M diethyl ether solution, 185 mL
  • a tetrahydrofuran solution (30 mL) of 1-(4-bromophenyl)-2,2,2-trifluoroethanone (40 g) (CAS registry number: 16184-89-7) was added to the resulting mixture.
  • the resulting solution was stirred at room temperature for 1.5 hours.
  • reaction solution was poured into a mixed solution of a saturated ammonium chloride aqueous solution (500 mL) and ice water (500 mL), and 1 N hydrochloric acid was added to the resulting solution until the mixture became light yellow, followed by extraction with ethyl acetate.
  • the organic layer was washed sequentially with water and saturated brine, and dried over anhydrous magnesium sulfate, followed by concentration under reduced pressure to obtain the title compound (51 g) having the following physical property values.
  • the precipitate washed with hexane/ethyl acetate (1/1).
  • the filtrate and the washing solution were combined together, and concentrated under reduced pressure until the amount became the half.
  • the resulting product was washed with 1 N sodium hydroxide aqueous solution (150 mL ⁇ four times), 1N hydrochloric acid (200 mL), water (150 mL), and saturated brine, sequentially, dried over anhydrous magnesium sulfate, and concentrated under reduced pressure.
  • a tert-butyl methyl ether solution (96 mL) of the compound (9.8 g) produced in Example 18 was cooled in ice bath, and 4 N hydrogen chloride / 1,4- dioxane solution (15 mL) was added thereto. The resulting mixture was stirred. The generated precipitate was collected by filtration and washed with tert-butyl methyl ether. To the resulting solid, acetonitrile (200 mL) was added, followed by stirring at 80°C. After dissolving, the resulting solution was cooled to room temperature and was stirred overnight.
  • Example 19 The compound produced in Example 19 (7.8 g) was dissolved in methanol (10 mL) and ethyl acetate (50 mL), and a saturated sodium hydrogencarbonate aqueous solution (150 mL) was added in several portions while stirring. Then, the reaction mixture was extracted with ethyl acetate. The organic layer was washed with saturated brine, dried over anhydrous magnesium sulfate, and concentrated under reduced pressure. To the resulting residue, a tetrahydrofuran solution (130 mL) was added. The resulting mixture was cooled in ice water bath, and imidazole (11 g) and chlorotrimethylsilane (20 mL) were added thereto, followed by stirring at 30°C for one hour.
  • N,N- dimethylformamide solution 100 mL of the compound (9.4 g) produced in Example 20, N-chlorosuccinimide (9.1 g) was added.
  • the resulting mixture was stirred at room temperature for 15 hours, and was further stirred at 40°C for two hours.
  • the reaction mixture was poured into water (300 mL), followed by extraction with hexane- ethyl acetate (1:1, 100 mL ⁇ three times). The organic layer was washed with saturated brine, dried over anhydrous magnesium sulfate, and concentrated under reduced pressure.
  • Example 10 Amine produced in Example 10 or the corresponding amine instead of 1-(5-methyl-1,2-oxazole-3-yl)methanamine hydrochloride was used and subjected to the same procedure as in Example 22 to obtain the title compound having the following physical property values.
  • Example 15b The compound produced in Example 15b instead of the compound produced in Example 15a was used and subjected to the same procedure as in Example 16 ⁇ Example 17 ⁇ Example 18 ⁇ Example 19 ⁇ Example 20 ⁇ Example 21 to obtain the title compound having the following physical property values.
  • Example 24 The compound produced in Example 24 instead of the compound produced in Example 21 was used and subjected to the same procedure as in Example 22 to obtain the title compound having the following physical property values.
  • 1 H-NMR (DMSO-d 6 ) : ⁇ 1.69, 2.37, 4.25, 6.10, 6.91-7.00, 7.64, 8.24.
  • Example 24 instead of the compound produced in Example 21, and amine produced in Example 10 or the corresponding aminie instead of 1-(5-methyl-1,2-oxazole-3-yl)methanamine hydrochloride were used and subjected to the same procedure as in Example 22 to obtain the title compound having the following physical property values.
  • Example 24 The compound produced in Example 24 instead of the compound produced in Example 21 was used and subjected to the same procedure as in Example 23 to obtain the title compound having the following physical property values.
  • 1 H-NMR (DMSO-d 6 ) ⁇ 1.68, 4.68, 6.92, 7.24, 7.63, 8.60.
  • reaction solution was filtered, and the filtrate was washed sequentially with 1 N sodium hydroxide aqueous solution twice, with 1 N hydrochloric acid once, and with saturated brine once.
  • organic layer was dried over anhydrous magnesium sulfate, and concentrated under reduced pressure.
  • Example 10 The compound produced in Example 10 instead of 1-[5-(trifluoromethyl)-2-pyridinyl]methanamine hydrochloride was used and subjected to the same procedure as in Example 32 to obtain the title compound having the following physical property values.
  • 1 H-NMR (DMSO-d 6 ) : ⁇ 4.53, 5.27, 7.12, 7.18, 7.58, 7.95, 8.40.
  • Example 27b The compound produced in Example 27b instead of the compound produced in Example 27a was used and subjected to the same procedure as in Example 28 ⁇ Example 29 ⁇ Example 30 ⁇ Example 31 to obtain the title compound having the following physical property values.
  • Example 34 The compound produced in Example 34 instead of the compound produced in Example 31 was used and subjected to the same procedure as in Example 32 to obtain the title compound having the following physical property values.
  • 1 H-NMR (CD 3 OD) : ⁇ 4.58, 5.08, 7.57, 7.64, 8.11, 8.80.
  • Example 34 The compound produced in Example 34 instead of the compound produced in Example 31, and the corresponding amine instead of 1-[5-(trifluoromethyl)-2-pyridinyl]methanamine hydrochloride were used and subjected to the same procedure as in Example 32 to obtain the title compound having the following physical property values.
  • Example 10 The compound produced in Example 10 instead of 1-[5-(trifluoromethyl)-2-pyridinyl]methanamine hydrochloride was used and subjected to the same procedure as in Example 32 to obtain the title compound having the following physical property values.
  • 1 H-NMR (DMSO-d 6 ) : ⁇ 4.53, 5.27, 7.12, 7.18, 7.58, 7.96, 8.39.
  • Example 42 The compound produced in Example 42 instead of the compound produced in Example 4 was used and subjected to the same procedure as in Example 5 to obtain the title compound having the following physical property values.
  • 1 H-NMR (CD 3 OD) ⁇ 1.84, 4.59, 7.64, 7.85, 8.12, 8.81.
  • Example 42 The compound produced in Example 42 instead of the compound produced in Example 4, and the corresponding aminie instead of 1-[5-(trifluoromethyl)-2-pyridinyl]methanamine hydrochloride were used and subjected to the same procedure as in Example 5 to obtain the title compound having the following physical property values.
  • N,N- dimethylformamide solution (2 mL) of the compound produced in Example 47 (53 mg), N-chlorosuccinimide (32 mg) was added, and the resulting mixture was stirred at room temperature for 18 hours.
  • Water was added to the reaction mixture, followed by extraction with a mixed solvent of ethyl acetate and hexane. The organic layer was dried over anhydrous magnesium sulfate, and concentrated under reduced pressure. The resulting residue was dissolved in tetrahydrofuran (2 mL), and chlorotrimethylsilane (116 ⁇ L) and imidazole (80 mg) were added to the solution, and the solution was stirred at room temperature for two hours.
  • Example 48 The compound produced in Example 48 instead of the compound produced in Example 4 was used and subjected to the same procedure as in Example 5 to obtain the title compound having the following physical property values.
  • 1 H-NMR (CD 3 OD) ⁇ 1.70, 4.59, 7.38, 7.53, 7.62, 8.12, 8.82.
  • Example 61 The compound produced in Example 61 instead of the compound produced in Example 59 was used and subjected to the same procedure as in Example 60 to obtain the title compound having the following physical property values.
  • 1 H-NMR (DMSO-d 6 ) : ⁇ 2.23, 4.47, 5.11-5.20, 6.92, 7.03, 7.30, 7.41, 7.57, 8.13, 8.23, 8.89.
  • Example 61 The compound produced in Example 61 instead of the compound produced in Example 59, and the corresponding aminie instead of 1-[5-(trifluoromethyl)-2-pyridinyl]methanamine hydrochloride were used and subjected to the same procedure as in Example 60 to obtain the title compound having the following physical property values.
  • a saturated sodium hydrogencarbonate aqueous solution was added to the reaction mixture, followed by extraction with ethyl acetate. The organic layer was washed with saturated brine, dried over anhydrous magnesium sulfate, and concentrated under reduced pressure. The resulting residue was dissolved in tetrahydrofuran (1 mL), and tetrabutyl ammonium fluoride (1 M tetrahydrofuran solution, 582 ⁇ L) was added, and the solution was stirred at room temperature for one hour. A saturated ammonium chloride aqueous solution was added to the reaction mixture, followed by extraction with ethyl acetate. The organic layer was washed with saturated brine, dried over anhydrous magnesium sulfate, and concentrated under reduced pressure.
  • Example 74 The compound produced in Example 74 instead of the compound produced in Example 4 was used and subjected to the same procedure as in Example 5 to obtain the title compound having the following physical property values.
  • 1 H-NMR (DMSO-d 6 ) : ⁇ 1.50, 4.47, 6.02, 7.10, 7.57-7.59, 8.22-8.26, 8.39, 8.89.
  • N,N-dimethylformamide solution (30 mL) of 1-(4-aminophenyl)-2,2,2-trifluoroethanone (CAS registry number: 23516-79-2) (2.60 g), N-chlorosuccinimide (3.70 g) was added, followed by stirring at 40°C for 18 hours.
  • An aqueous solution of saturated sodium hydrogencarbonate was added to reaction mixture, followed by extraction with ethyl acetate. The organic layer was washed with saturated brine, dried over anhydrous magnesium sulfate, and concentrated under reduced pressure.
  • a saturated sodium hydrogencarbonate aqueous solution was added to the reaction mixture, followed by extraction with ethyl acetate.
  • the organic layer was washed with saturated brine, dried over anhydrous magnesium sulfate, and concentrated under reduced pressure.
  • the resulting residue was dissolved in tetrahydrofuran (2 mL), and water (0.2 mL) and triphenylphosphine (83 mg) were added thereto.
  • the resulting solution was stirred at room temperature for 30 minutes, and stirred at 50°C for four hours.
  • the reaction mixture was diluted with water, followed by extraction with ethyl acetate.
  • the organic layer was washed with saturated brine, dried over anhydrous magnesium sulfate, and concentrated under reduced pressure.
  • Example 2 The compound produced in Example 2 instead of the compound produced in Example 4 was used and subjected to the same procedure as in Example 5 to obtain the title compound having the following physical property values.
  • 1 H-NMR (DMSO-d 6 ) ⁇ 1.63, 4.49, 6.42, 6.86, 7.41, 7.57, 8.18, 8.90.
  • Human KCNQ2/3 expression cells (CHO-DHFR-cells) were seeded in each well of 384 well plate (collagen-coated, black, clear bottom) at 0.5 ⁇ 10 4 cells/50 ⁇ L per well, and cultured in a MEM ALPHA medium (containing 10 vol% inactivated (56°C, 30 min) Fetal Bovine Serum and 100 IU/mL Penicillin - 100 ⁇ g/mL Streptomycin - 2mM L-Glutamine) at 37°C in 5% CO 2 for 18 to 24 hours. The medium in the plate was removed.
  • MEM ALPHA medium containing 10 vol% inactivated (56°C, 30 min) Fetal Bovine Serum and 100 IU/mL Penicillin - 100 ⁇ g/mL Streptomycin - 2mM L-Glutamine
  • the channel opening action of the compound of the present invention was evaluated based on the change amount of the fluorescence intensity from the time before the depolarization stimulation to the time after the passage of 180 seconds.
  • concentration (ECrtg50) satisfying 50% of the fluorescence intensity change of maximum reaction (at the time of 10 ⁇ M-treatment) of retigabine under this experiment condition was calculated.
  • the KCNQ2/3 channel opening action of the compound of the present invention showed 100 ⁇ M or less in terms of the ECrtg50 value.
  • Table 1 shows the opening action (ECrtg50 values) with respect to the KCNQ2/3 channel of the following compounds as representative examples of the compound of the present invention. As is apparent from Table 1, the compound of the present invention showed a strong opening action with respect to the KCNQ2/3 channel. On the other hand, the ECrtg50 value of the comparative compound 1 was >10 ⁇ M. This shows that it is essential for improvement of the KCNQ opening activity of the compound of the present invention that at least one of R 4 and R 5 in the general formula (I) is a substituent such as halogen.
  • Example 5 [Table 1] Compound KCNQ2/3 ECrtg50 ( ⁇ M) Compound KCNQ2/3 ECrtg50 ( ⁇ M) Example 5 (3) 0.5 Example 25 (2) 0.3 Example 5 (4) 0.003 Example 25 (5) 0.6 Example 5 (5) 0.3 Example 25 (6) 0.06 Example 5 (6) 0.4 Example 26 0.04 Example 5 (7) 0.5 Example 32 (1) 0.007 Example 5 (8) 0.001 Example 32 (3) 0.5 Example 5 (9) 0.3 Example 32 (4) 0.2 Example 5 (10) 0.0003 Example 33 0.04 Example 5 (11) 0.07 Example 35 (1) 0.008 Example 5 (12) 2.9 Example 35 (3) 0.3 Example 5 (13) 0.6 Example 36 0.03 Example 5 (15) 2.3 Example 43 (1) 0.4 Example 5 (16) 0.01 Example 49 0.6 Example 5 (17) 0.003 Example 50 (1) 0.06 Example 5 (19) 0.1 Example 50 (2) 0.03 Example 5 (20) 0.5 Example 50 (4) 0.05 Example 5 (21) 0.07 Example 50 (6) 0.06 Example 5 (22) 0.7 Example 50 (7) 0.04 Example 13 0.01 Example 60 1.7 Example
  • the urinary bladder bodies were cut in the longitudinal direction to prepare strip specimens (about 10 ⁇ 3 mm) on ice. Immediately, the prepared specimens were suspended in a Magnus tube with 500 mg of tension loaded. The tube was filled with Krebs buffer (37°C) aerated with a mixed gas. Note here that specimens were prepared within 24 hours after extraction of the tissue.
  • Carbachol (a contraction-inducing substance) at the concentration of contraction of 1 ⁇ M was used to induce contraction.
  • the substances were arbitrarily assigned in groups so that difference in the degree of contraction was not generated between groups and the specimens harvested from the same individual did not belong to the same group.
  • a physiological salt solution or the compound of the present invention was added in a cumulative manner from low concentration such that the final concentration became 1, 10, 100 nM, 1 and 10 ⁇ M.
  • the tension (mg) of the extracted urinary bladder was employed as an evaluation parameter.
  • the tension was read by using analysis software WAVE THERMO 1000.
  • Tension after addition of the contraction-inducing substance was set to 0%.
  • the change rate of the tension after addition of the compound of the present invention relative to the tension after addition of the contraction-inducing substance was defined as tension change rate (%).
  • the tension change rate (%) was adopted as an evaluation indicator.
  • the tension change rate (%) is calculated from the following formula.
  • Tension change rate % Tensile after addition of compound of the present invention and the like mg ⁇
  • the value at which the tension change rate (%) was - 20% was calculated as IC 20 , and the value was adopted as an indicator of the relaxing action of the extracted urinary bladder.
  • Table 2 shows IC 20 values in the rat Magnus test of the following compounds as representative examples of the compound of the present invention. As is apparent from Table 2, the compound of the present invention had relaxing action with respect to the extracted rat urinary bladder. Consequently, the compound of the present invention is useful as a therapeutic agent for overactive urinary bladder.
  • Compound Rat Magnus test IC 20 (uM) Example 22 (1) 0.3 Example 22 (2) 0.4 Example 22 (3) 0.3 Example 22 (5) 0.3 Example 23 0.1 Example 25 (1) 0.6 Example 25 (2) 0.2 Example 25 (5) 0.5 Example 26 0.2 Example 32 (1) 0.02 Example 32 (3) 0.1 Example 32 (4) 0.2 Example 33 0.03 Example 35 (1) 0.02 Example 35 (3) 0.1 Example 36 0.01
  • a calibration curve solution was prepared by diluting a test substance (10 mM DMSO solution) with acetonitrile and adding acetonitrile including an internal standard substance (candesartan) so as to be 0.1, 0.4, and 2 ⁇ M.
  • CANDESARTAN an internal standard substance
  • the calibration curve and sample solutions in the amount of 5 ⁇ L were infused into LC-MS/MS (Discovery Max manufactured by Thermo Scientific) and subjected to quantitation (quantitation range: 5 to 100 ⁇ M).
  • the solubility was set to ⁇ 5 ⁇ M when the value was less than the quantitation range, and the solubility was set to 100 ⁇ M when the value was more than the quantitation range.
  • Example 5 [Table 3] Compound Solubility (uM) Compound Solubility (uM) Example 5 (4) 79 Example 25 (2) 86 Example 5 (5) 93 Example 25 (5) 98 Example 5 (6) 94 Example 25 (6) 40 Example 5 (9) 91 Example 26 59 Example 5 (13) 81 Example 32 (1) 100 Example 5 (15) 90 Example 32 (3) 100 Example 5 (19) 76 Example 32 (4) 77 Example 5 (20) 100 Example 33 91 Example 5 (22) 85 Example 35 (1) 100 Example 13 69 Example 35 (3) 87 Example 22 (1) 77 Example 36 44 Example 22 (2) 89 Example 43 (1) 89 Example 22 (3) 81 Example 50 (1) 82 Example 22 (5) 91 Example 50 (2) 41 Example 23 46 Example 62 71 Example 25 (1) 96 Example 79 (1) 87 Comparative Example 2 ⁇ 5
  • test compound (10 mmol/L DMSO solution, 5 ⁇ L) was diluted with 50% acetonitrile aqueous solution (195 ⁇ L) to prepare 0.25 mmol/L solution.
  • This solution (20 ⁇ L) was stirred with 180 ⁇ L of 50% acetonitrile aqueous solution on a plate equipped with a deproteinization filter. Then, the resulting mixture solution was subjected to suction filtration. The filtrate was adopted as a standard sample.
  • reaction solution was incubated at 37°C for 15 minutes, and 20 ⁇ L of the solution was added to 180 ⁇ L of cooled acetonitrile (including warfarin that is an internal standard substance) to stop the reaction.
  • This solution (20 ⁇ L) was stirred with 180 ⁇ L of 50% acetonitrile aqueous solution on a plate equipped with a deproteinization filter, and then the resulting mixture solution was subjected to suction filtration. The filtrate was adopted as a reaction sample.
  • Residual rate (%) was obtained as follows: 1 ⁇ L of the sample solution was infused into LC-MS/MS (Discovery Max manufactured by Thermo Scientific), and a quotient obtained by dividing a peak area ratio of the reaction sample (peak area of test compound / peak area of internal standard substance) was divided by the peak area ratio of the standard sample was multiplied by 100.
  • Example 4 Compound Residual rate (%) Compound Residual rate (%) Example 5 (13) 75 Example 25 (6) 73 Example 5 (15) 97 Example 26 64 Example 5 (19) 100 Example 32 (3) 100 Example 5 (20) 91 Example 32 (4) 100 Example 22 (1) 100 Example 33 100 Example 22 (2) 100 Example 35 (1) 100 Example 22 (3) 98 Example 35 (3) 100 Example 22 (5) 99 Example 36 100 Example 22 (15) 93 Example 50 (1) 96 Example 22 (16) 94 Example 50 (4) 100 Example 23 100 Example 60 98 Example 25 (1) 78 Example 75 100 Example 25 (2) 80 Example 79 (1) 82 Example 25 (5) 87
  • Example 22 (1) >10 Example 22 (2) >10 Example 22 (3) >10 Example 22 (5) >10 Example 23 >10 Example 25 (1) >10 Example 25 (2) >10 Example 25 (5) >10 Example 26 >10 Example 32 (3) >10 Example 32 (4) >10 Example 33 >10 Example 35 (3) >10 Example 36 >10 Example 50 (1) >10 Example 79 (1) >10
  • the following components were mixed with each other in a usual method and filtered with a dust removal filter, and 5 mL each of the filtrate was filled into ampoules.
  • the ampoules were heated and sterilized in an autoclave, thereby obtaining 10,000 ampoules each containing 20 mg of the active ingredient.
  • the compound of the present invention has sufficiently low toxicity, and can be used safely as a pharmaceutical agent, and useful as a therapeutic agent for KCNQ2-5 channel-related diseases.

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Claims (19)

  1. Composé représenté par la formule générale (I) :
    Figure imgb0077
    dans laquelle X1 est (1) un atome d'azote ou (2) C-R6; X2 est (1) un atome d'azote ou (2) C-R7 ; le radical R11 est (1) OR1 ou (2) NH2 ; le radical R1 est (1) un atome d'hydrogène ou (2) un groupe alkyle en C1-4 ; les radicaux R2 et R3 sont chacun indépendamment (1) un atome d'hydrogène ou (2) un groupe alkyle en C1-4 qui peut être substitué par un halogène, les radicaux R2 et R3 n'étant pas tous deux simultanément un atome d'hydrogène ; les radicaux R4, R5, R6 et R7 sont chacun indépendamment (1) un atome d'hydrogène, (2) un halogène, (3) un groupe alkyle en C1 à C4 qui peut être substitué par un halogène, ou (4) un groupe alcoxy en C1 à C4 qui peut être substitué par un halogène ;
    les radicaux R4 et R5 ne sont pas simultanément un atome d'hydrogène ; Y est (1) -NH-, (2) -O- ou (3) une liaison ; le radical R8 est (1) un atome d'hydrogène ou (2) un groupe alkyle en C1-4 qui peut être substitué par un halogène ou un groupe hydroxy ; le radical R9 est (1) un cycle A, (2) un groupe alkyle en C1-6, (3) un groupe alcényle en C2-6, (4) un groupe alcynyle en C2-6, (5) un groupe alkylène en C1-4 - cycle A, (6) un groupe alcénylène en C2-4 groupe alcénylène - cycle A, (7) un groupe alcynylène en C2-4 - cycle A, (8) un cycle B - cycle C, (9) un cycle B - groupe alcénylène en C1-4 - cycle C, (10) un cycle B - groupe alcénylène en C2-4 - cycle C, (11) un cycle B - groupe alcynylène en C2-4 - cycle C, ou (12) un cycle B-O - cycle C ; le groupe alkyle, le groupe alcényle, le groupe alcynyle, le groupe alkylène, le groupe alcénylène ou le groupe alcynylène pouvant être substitués chacun par un halogène ou un groupe hydroxy ; le cycle A est (1) un cycloalcane en C3-8, (2) un hétérocycloalcane de 3 à 8 chaînons, (3) un noyau carbocyclique insaturé monocyclique ou bicyclique en C3-12, ou qui peut être partiellement saturé, ou (4) hétérocycle insaturé monocyclique ou bicyclique de 3 à 12 chaînons comprenant un à quatre hétéroatomes choisis parmi un atome d'oxygène, un atome d'azote et un atome de soufre, ou qui peut être partiellement saturé ; le cycle B et le cycle C sont chacun indépendamment (1) un cycloalcane en C3-8, (2) un hétérocycloalcane de 3 à 8 chaînons, (3) un cycle carbocyclique insaturé monocyclique en C3-7, ou qui peut être partiellement saturé, ou (4) un hétérocycle insaturé monocyclique de 3 à 7 chaînons comprenant un à trois hétéroatomes choisis parmi un atome d'oxygène, un atome d'azote et un atome de soufre, ou qui peut être partiellement saturé ; le cycle A, le cycle B et le cycle C peuvent être substitués chacun indépendamment par un à cinq radical R10 et quand une pluralité du radical R10 est présente, ces radicaux R10 peuvent être identiques ou différents les uns des autres ; le radical R10 est (1) un halogène, (2) un groupe hydroxy, (3) un groupe cyano, (4) un groupe alkyle en C1-6 qui peut être substitué par un halogène ou un groupe hydroxy, (5) un groupe alcoxy en C1-6 qui peut être substitué par un halogène ou un groupe hydroxy, ou (6) un groupe amino qui peut être substitué par un groupe alkyle en C1-4 ou un groupe acyle en C2-5, à l'exclusion de la [2-bromo-4-(hexafluoro-2-hydroxy-2-propyl)phényl]urée, un sel de celle-ci, un solvate de celle-ci, ou un cocristal de celle-ci.
  2. Composé selon la revendication 1,
    dans lequel Y est -NH- ou une liaison, un sel de celui-ci, un solvate de celui-ci, ou un cocristal de celui-ci.
  3. Composé selon la revendication 1 ou 2,
    dans lequel X1 est C-R6, et X2 est C-R7, un sel de celui-ci, un solvate de celui-ci, ou un cocristal de celui-ci.
  4. Composé selon l'une quelconque des revendications 1 à 3, représenté par la formule générale (I1) :
    Figure imgb0078
    dans laquelle les symboles ont la même signification que dans la revendication 1, un sel de celui-ci, un solvate de celui-ci, ou un cocristal de celui-ci.
  5. Composé selon l'une quelconque des revendications 1 à 4,
    dans lequel le radical R1 est un atome d'hydrogène, un sel de celui-ci, un solvate de celui-ci ou un cocristal de celui-ci.
  6. Composé selon l'une quelconque des revendications 1 à 5,
    dans lequel l'un des radicaux R2 et R3 est un groupe méthyle qui peut être substitué par un halogène, et l'autre est un atome d'hydrogène ou un groupe méthyle qui peut être substitué par un halogène, un sel de celui-ci, un solvate de celui-ci, ou un cocristal de celui-ci.
  7. Composé de maïs selon l'une quelconque des revendications 1 à 6,
    dans lequel le radical R6 est un atome d'hydrogène ou un halogène, et le radical R7 est un atome d'hydrogène, un sel de celui-ci, un solvate de celui-ci, ou un cocristal de celui-ci.
  8. Composé selon l'une quelconque des revendications 1 à 7, représenté par la formule générale (II-1) :
    Figure imgb0079
    dans laquelle le radical R6 est un atome d'hydrogène ou un halogène, et les autres symboles ont la même signification que celle décrite dans la revendication 1, un sel de celui-ci, un solvate de celui-ci, ou un cocristal de celui-ci.
  9. Composé selon l'une quelconque des revendications 1 à 7, qui est représenté par la formule générale (II-2) :
    Figure imgb0080
    dans laquelle le radical R6 est un atome d'hydrogène ou un halogène, et les autres symboles ont la même signification que dans la revendication 1, un sel de celui-ci, un solvate de celui-ci, ou un cocristal de celui-ci.
  10. Composé selon l'une quelconque des revendications 1 à 9,
    dans lequel les radicaux R4 et R5 sont chacun indépendamment un halogène ou un groupe méthyle, un sel de celui-ci, un solvate de celui-ci, ou un cocristal de celui-ci.
  11. Composé selon l'une quelconque des revendications 1 à 10,
    dans lequel le radical R8 est un atome d'hydrogène ou un groupe méthyle, un sel de celui-ci, un solvate de celui-ci ou un cocristal de celui-ci.
  12. Composé selon la revendication 1,
    dans lequel le composé est :
    (1) 1-{2,6-dichloro-4-[(2R)-1,1,1-trifluoro-2-hydroxy-2-propanyl]phényl)-3-{[5-(trifluorométhyl)-2-pyridinyl]méthyl}urée,
    (2) 1-{2,6-dichloro-4-[(2R)-1,1,1-trifluoro-2-hydroxy-2-propanyl]phényle}-3-{[5-(trifluorométhyl)-2-pyrimidinyl]méthyl} urée,
    (3) 1-{2,6-dichloro-4-[(2R)-1,1,1-trifluoro-2-hydroxy-2-propanyl]phényl}-3-{[6-(trifluorométhyl)-3-pyridinyl]méthyl} urée,
    (4) 1-[(5-chloro-2-pyridinyl)méthyl]-3-{2,6-dichloro-4-[(2R)-1,1,1-tri-fluoro-2-hydroxy-2-propanyl]phényl} urée,
    (5) 1-{2,6-dichloro-4-[(2R)-1,1,1-trifluoro-2-hydroxy-2-propanyl]phényl}-3-{[3-(trifluorométhyl)-1,2,4-oxadiazole-5-yl]méthyl} urée,
    (6) 1-{2,6-dichloro-4-[(2S)-1,1,1-trifluoro-2-hydroxy-2-propanyl]phényl}-3-{[5-(trifluorométhyl)-2-pyrimidinyl]méthyl} urée,
    (7) 1-{2,6-dichloro-4-[(2S)-1,1,1-trifluoro-2-hydroxy-2-propanyl]phényl}-3-{[6-(trifluorométhyl)-3-pyridinyl]méthyl} urée,
    (8) 1-[(5-chloro-2-pyridinyl)méthyl]-3-{2,6-dichloro-4-[(2S)-1,1,1-trifluoro-2-hydroxy-2-propanyl]phényl} urée,
    (9) 1-{2,6-dichloro-4-[(2S)-1,1,1-trifluoro-2-hydroxy-2-propanyl]phényl}-3-{[3-(trifluorométhyl)-1,2,4-oxadiazole-5-yl]méthyl} urée,
    (10) 1-{2,6-dichloro-4-[(1R)-2,2,2-trifluoro-1-hydroxyéthyl]phényl}-3-{[3-(trifluorométhyl)-1,2,4-oxadiazole-5-yl]méthyl} urée,
    (11) 1-{2,6-dichloro-4-[(1R)-2,2,2-trifluoro-1-hydroxyéthyl]phényl}-3-{[2-(trifluorométhyl)-5-pyrimidinyl]méthyl} urée,
    (12) 1-{2,6-dichloro-4-[(1R)-2,2,2-trifluoro-1-hydroxyéthyl]phényl}-3-{[5-(trifluorométhyl)-2-pyrimidinyl]méthyl} urée,
    (13) 1-{2,6-dichloro-4-[(1R)-2,2,2-trifluoro-1-hydroxyéthyl]phényl}-3-{[2-(trifluorométhyl)-1,3-thiazole-5-yl]méthyle} urée,
    (14) 1-{2,6-dichloro-4-[(1S)-2,2,2-trifluoro-1-hydroxyéthyl]phényl}-3-{[3-(trifluorométhyl)-1,2,4-oxadiazole-5-yl]méthyl} urée,
    (15) 1-{2,6-dichloro-4-[(1S)-2,2,2-trifluoro-1-hydroxyéthyl]phényl}-3-{[2-(trifluorométhyl)-5-pyrimidinyl]méthyl} urée,
    (16) 1-{2,6-dichloro-4-[(1S)-2,2,2-trifluoro-1-hydroxyéthyle]phényl}-3-{[2-(trifluorométhyl)-1,3-thiazole-5-yl)méthyl} urée,
    (17) 1-{2,6-dichloroi-4-[(2S)-1,1,1-trifluoro-2-hydroxy-2-propanyl]phényl}-3-{[5-(trifluorométhyl)-2-pyridinyl]méthyl} urée, ou
    (18) 1-{2,6-dichloro-4-[(1S)-2,2,2-trifluoro-1-hydroxyéthyl]phényl}-3-{[5-(trifluorométhyl)-2-pyrimidinyl]méthyl urée,
    un sel de ceux-ci, un solvate de ceux-ci, ou un cocristal 10 de ceux-ci.
  13. Composé selon la revendication 1,
    choisi parmi : 1-[(5-chloro-2-pyridinyl)méthyl]-3-{(2,6-dichloro-4-(2S)-1,1,1-trifluoro-2-hydroxy-2-propanyl]phényl} urée, un sel de ceux-ci, un solvate de ceux-ci, et un cocristal de ceux-ci.
  14. Composé de la revendication 13,
    qui est 1-[(5-chloro-2-pyridinyl)méthyl]-3-{2,6-dichloro-4-[(2S)-1,1,1-trifluoro-2-hydroxy-2-propanyl]phényl} urée.
  15. Composition pharmaceutique comprenant un composé selon l'une quelconque des revendications 1 à 14, un sel, un solvate ou un cocristal de celui-ci, et un support pharmaceutiquement acceptable.
  16. Composé selon l'une quelconque des revendications 1 à 14, un sel, solvate ou cocristal de ce produit, ou la composition pharmaceutique selon la revendication 15, pour une utilisation dans la prévention et/ou le traitement d'une maladie liée aux canaux KCNQ2-5.
  17. Composé, sel, solvate, cocristal ou composition pharmaceutique à utiliser selon la revendication 16,
    dans lequel la maladie liée au canal KCNQ2-5 est : épilepsie, troubles de la douleur, troubles du nerf périphérique diabétique, troubles de l'anxiété, troubles de l'adaptation de l'humeur, troubles schizophréniques, toxicomanie, troubles de l'adaptation de l'attention, troubles du sommeil, accidents cérébraux, acouphènes, troubles de la mémoire, sclérose latérale amyotrophique, troubles du mouvement, dysurie, dureté de l'audition, asthme, bronchopneumopathie chronique obstructive, toux, hypertension pulmonaire, maladie neurodégénérative de l'organe visuel, ou diabète sucré.
  18. Composé, sel, solvate, cocristal ou composition pharmaceutique à utiliser selon la revendication 17, la maladie liée au canal KCNQ2-5 étant la dysurie.
  19. Composé, sel, solvate, cocristal ou composition pharmaceutique à utiliser selon la revendication 18, la dysurie étant une vessie urinaire hyperactive.
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US10676438B2 (en) 2020-06-09
RU2017117566A (ru) 2018-11-26
CA2965467A1 (fr) 2016-04-28
ES2871673T3 (es) 2021-10-29
US20170217888A1 (en) 2017-08-03
US10196358B2 (en) 2019-02-05
EP3210969A4 (fr) 2018-03-28
ZA201703498B (en) 2019-06-26
MX2017005044A (es) 2017-07-04
TW201625533A (zh) 2016-07-16
JP2018048143A (ja) 2018-03-29
US20180346422A1 (en) 2018-12-06
BR112017008178A2 (pt) 2017-12-19
PH12017500737B1 (en) 2017-10-09
US9809544B2 (en) 2017-11-07
JP6217866B2 (ja) 2017-10-25
CN107108485B (zh) 2020-06-12
IL251827A0 (en) 2017-06-29
IL251827B (en) 2019-12-31
AU2015336458B2 (en) 2018-05-10
SG11201703284XA (en) 2017-06-29
RU2712163C2 (ru) 2020-01-24
TWI664166B (zh) 2019-07-01
KR20170076673A (ko) 2017-07-04
WO2016063990A1 (fr) 2016-04-28
US20200157050A1 (en) 2020-05-21
RU2017117566A3 (fr) 2019-02-05
PH12017500737A1 (en) 2017-10-09
EP3210969A1 (fr) 2017-08-30
CN107108485A (zh) 2017-08-29
AU2015336458A1 (en) 2017-06-08
JP6627835B2 (ja) 2020-01-08
JPWO2016063990A1 (ja) 2017-08-03
US20170334855A1 (en) 2017-11-23

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